back and forth
来回地; 一来一往
ph.
1. The wind moved the trees gently back and forth.
风吹来,树来回轻摆。
1. 来回地,反复地:at times 有时,间或 | back and forth 来回地,反复地 | back of 在......后面
2. (前后)来回地,往返:attend to 专心;照顾,护理 | back and forth (前后)来回地,往返 | back away 逐渐后退
3. (前后)来回地,反复地:at the same time同时;然而,不过 | at the sight of一看见......就 | back and forth(前后)来回地,反复地
1. The bidding went back and forth between the two into Tuesday night and carried over into Wednesday.
2. There is no law that requires a school to chauffeur students back and forth.
3. Back and forth they went before a delirious and evenly divided gallery.
4. Tourism Council WA Chief Executive Evan Hall said the agreement will create a lot of travel back and forth between WA and China.
5. A stream of emergency vehicles with flashing lights traveled back and forth on the narrow road leading to the mine.
6. The plan could go back and forth among the three parties before it is agreed to by all sides.
7. Researchers have gone back and forth over whether hair dyes pose any cancer risk.
8. Relations were good at one time then turned bad at another and have kept alternating back and forth.
9. Outside, locals amble back and forth on cobbled streets and tourists mosey up idyllic bridges.
10. Obama hurried back and forth between the two states, pleading for votes.
adv
1. moving from one place to another and back again
e.g. he traveled back and forth between Los Angeles and New York
the treetops whipped to and fro in a frightening manner
the old man just sat on the porch and rocked back and forth all day
Synonym: backward and forward to and fro