1 . 被
Troops tried to enter the building which had beencaptured and wired with explosive charges ., 軍隊(duì)試圖進(jìn)入這座已經(jīng)被占領(lǐng)并綁滿炸藥的建筑.
2 . 是
beemistress 養(yǎng)蜂女been是beep 嗶嗶聲
3 . 過
Close contacts have beenplaced under medical observation and all remain well ., 對(duì)于和他有過密切接觸的人現(xiàn)在置于醫(yī)學(xué)觀察之下 , 現(xiàn)在都很健康.
4 . 了
i cant recall how long it has been., 我回憶不起來多長時(shí)間了.
been英音:[bi:n]美音:[bɪn] been be的過去分詞,是 has been 用于完成時(shí),表示“已經(jīng)” eg. Scientists think that there has been life on Earth for millions of years 科學(xué)家認(rèn)為生命存在于地球已經(jīng)有幾百萬年了。 have been done現(xiàn)在完成時(shí)的被動(dòng)形式,表示已經(jīng)被完成 have been doing現(xiàn)在完成進(jìn)行時(shí),表示到現(xiàn)在為止仍然在進(jìn)行。 The work has been done.工作已經(jīng)被完成了。強(qiáng)調(diào)結(jié)果 They have been playing foot