to and fro
US /tuː ænd froʊ/
UK /tuː ænd froʊ/
副词
来回, 往复
back and forth
示例:
•
The pendulum swung to and fro.
摆锤来回摆动。
•
She paced to and fro, deep in thought.
她来回踱步，陷入沉思。
相关词:
来回, 往复
back and forth