1.a preparation (usually made of sweetened chicle) for chewing

2.the tissue (covered by mucous membrane) of the jaws that surrounds the bases of the teeth

3.a preparation (usually made of sweetened chicle) for chewing

4.any of various substances (soluble in water) that exude from certain plants; they are gelatinous when moist but harden on drying

5.cement consisting of a sticky substance that is used as an adhesive

6.the tissue (covered by mucous membrane) of the jaws that surrounds the bases of the teeth

7.wood or lumber from any of various gum trees especially the sweet gum

8.any of various substances (soluble in water) that exude from certain plants; they are gelatinous when moist but harden on drying

9.any of various trees of the genera Eucalyptus or Liquidambar or Nyssa that are sources of gum

10.cement consisting of a sticky substance that is used as an adhesive

11.wood or lumber from any of various gum trees especially the sweet gum

12.any of various trees of the genera Eucalyptus or Liquidambar or Nyssa that are sources of gum

1.grind with the gums; chew without teeth and with great difficulty;

the old man had no teeth left and mumbled his food

2.exude or form gum;

these trees gum in the Spring

3.grind with the gums; chew without teeth and with great difficulty;

the old man had no teeth left and mumbled his food

4.exude or form gum;

these trees gum in the Spring

1.齒齦

1.齒齦

1.膠皮

1.①樹膠：從各種植物獲得的膠漿性分泌物

1.①樹膠：從各種植物獲得的膠漿性分泌物

2.水解產生己糖、戊糖和糖醛酸

2.水解產生己糖、戊糖和糖醛酸

3.②齦：見gingiva和gingivae

3.②齦：見gingiva和gingivae

1.樹膠

1.樹膠

1.膠質

1.膠質

1.齦，又稱“牙齦”。牙床上的肉，分上齦、下齦。

1.齦，又稱“牙齦”。牙床上的肉，分上齦、下齦。

1.牙齦

1.牙齦

2. "又稱 :牙齦(gingiva,Gingiva（拉）,Periodontium protectoris（拉）) "

2. "又稱 :牙齦(gingiva,Gingiva（拉）,Periodontium protectoris（拉）) "

1 . 膠樹

The sweet gum, sour gum, and some Australian eucalyptus trees are gumtrees ., 甜膠樹 , 酸膠樹和一些澳大利亞的尤加利樹都是產樹膠的樹.

2 . 膠樹

The sweet gum, sour gum, and some Australian eucalyptus trees are gumtrees ., 甜膠樹 , 酸膠樹和一些澳大利亞的尤加利樹都是產樹膠的樹.

3 . 樹膠

...質(tannin)，右旋兒茶精(catechin)，左旋表兒茶精(epicatechin)，色素等。樹干和樹枝含大量樹膠(gum)。

4 . 樹膠

...質(tannin)，右旋兒茶精(catechin)，左旋表兒茶精(epicatechin)，色素等。樹干和樹枝含大量樹膠(gum)。

5 . 膠

第二段說：Resin的形成為什么呢，1）有研究表明，植物產生resin或gum(黏膠)等物質，以驅除repel其他昆蟲的，但是對于一些昆蟲來說，反而形成吸引attraction。2）又有.

6 . 膠

第二段說：Resin的形成為什么呢，1）有研究表明，植物產生resin或gum(黏膠)等物質，以驅除repel其他昆蟲的，但是對于一些昆蟲來說，反而形成吸引attraction。2）又有.

7 . 膠質

...植物產品或其它傳播載體的輸入(或輸出)，以達到防止傳入(或傳出)有害生物，保護農業生產和環境的目的。膠質(gum):膠質是由導管端壁、紋孔膜以及穿孔板的細胞壁和胞間層產生的，其主要成分是果膠和半纖維素。接合孢子(zygospore):接合菌的有性孢子，由配子囊配合方式產生。接合孢子外有厚壁的接合孢子囊.

8 . 膠質

...植物產品或其它傳播載體的輸入(或輸出)，以達到防止傳入(或傳出)有害生物，保護農業生產和環境的目的。膠質(gum):膠質是由導管端壁、紋孔膜以及穿孔板的細胞壁和胞間層產生的，其主要成分是果膠和半纖維素。接合孢子(zygospore):接合菌的有性孢子，由配子囊配合方式產生。接合孢子外有厚壁的接合孢子囊.

1 . 脂松香

the main business scope is as follows : gum rosin gum turpentine and various forest chemical products ;公司主要經營商品為：脂松香，松節油，林業化工產品；

2 . 脂松香

the main business scope is as follows : gum rosin gum turpentine and various forest chemical products ;公司主要經營商品為：脂松香，松節油，林業化工產品；

1 . 膠與黃原膠

the synergy studies of sophora bean gum with xanthan gum ., 槐豆膠與黃原膠的協效性研究.

2 . 膠與黃原膠

the synergy studies of sophora bean gum with xanthan gum ., 槐豆膠與黃原膠的協效性研究.

1 . 樹膠膠糖

gum arabic　阿拉伯樹膠gum arabic gum　樹膠膠糖gum cbicle　糖膠樹膠〔一種制口香糖的樹膠〕.

2 . 樹膠膠糖

gum arabic　阿拉伯樹膠gum arabic gum　樹膠膠糖gum cbicle　糖膠樹膠〔一種制口香糖的樹膠〕.

1 . 膠與魔芋膠

study on synergistic gelation of xanthan gum and konjac gum ., 黃原膠與魔芋膠的協效凝膠性研究.

2 . 膠與魔芋膠

study on synergistic gelation of xanthan gum and konjac gum ., 黃原膠與魔芋膠的協效凝膠性研究.

1.That's probably a lot of chewing gum.

那很可能是些言不由衷之詞。

2.That's probably a lot of chewing gum.

那很可能是些言不由衷之詞。

3.A lot of what is said by politicians is just chewing gum.

政客們所說的許多話僅是些模棱兩可的欺人之談。

4.A lot of what is said by politicians is just chewing gum.

政客們所說的許多話僅是些模棱兩可的欺人之談。