back and forth 托福

1.Sybil see-sawed the car back and forth.

西比尔将车前后来回地开着。

2.Someone was pacing back and forth behind the curtain.

有人在幕布后踱来踱去。

3.The rope swung back and forth from the branch.

绳子在树枝上来回摇晃。

4.Insults were hurled back and forth between the two writers.

作家互相辱骂。

5.This ominous, goateed man waves a pocket watch back and forth, guiding his subject into a semi-sleep, zombie-like state.

不吉利、尖胡子男人来回晃一只怀表，引导他受测人进入了一半睡眠、僵状态。

6.In the Gulf of Mexico, trawlers ply back and forth year in year out, hauling vast nets that scarify the seabed and allow no time for plant and animal life to recover.

在墨西哥湾，拖网渔船年复一年来来往往地“辛勤”劳作，拖着巨大渔网，刮破了海底，没有给植物留下恢复时间。