对于业余博物学者来说，在一片空地上或被炸后的废墟里可能发现种类繁多的植物群和动物群。A vacant lot or a bombsite can, to the amateur naturalist, produce an extraordinary variety of flora and fauna.通过观察某些现存的动物群和植物群,我们就能更清楚地了解这种困难了.We shall appreciate this difficult...
Wendy popped in for a quick bite to eat on Monday night.温迪周一晚上过来匆匆吃了点儿饭。The orchestra gave its first performance on Whit Monday.乐团在周一的圣灵降临节举行了首场演出。Broughton took a sickie on Monday to paint his fence.布劳顿星期一称病请了一天假来粉刷栅栏。...
Car horns toot as cyclists dart precariously through the traffic.骑车人危险地在车流中飞速穿行时，汽车喇叭的嘟嘟声响成一片。The series of steep hills sapped the cyclists'strength.一连串坡度很大的小山耗尽了骑车人的气力.Cyclists who swerve to avoid dogs may fall off...
The typical lawn mower makes about 90 decibels of noise.典型的割草机发出的声响约为90分贝.We need a lawn mower to cut the grass.我们需要一台草坪修剪机来割草.Your big lawn mower is just the job for the high grass.割高草时正需要你的大割草机....