Insectpestsareamongtheleadingcausesofcropfailure.
A、expectedBlue－greenalgaegrowabundantlyinsaltmarshes.
Thefearofsmallpox,whichterrorizedtheeighteenthcentury,hasnoanalogy(likeness)today.
The wheels of the first road vehicles were fashioned from crude stone disks.
Some cosmetics manufacturers attempt to capture the rose's unmistakable fragrance香味 in soaps and perfumes.
The flower bud of a water lily 百合 opens at sunset since .its opening is triggered(commence) .by the decreased light.
