there and back

• adj. 来回的(往返)

there and back的用法和样例：

例句

用作形容词 (adj.)

1. Avoid zigzagging motions and quick direction changes.
   避免来回的动作和快速变向。
2. On the way there and back, I was alert to things that would reorient me to America.
   在来回的路上，我注意观察到一些事物，它们使我重新审视美国。