turn a hand

• vi. 助一臂之力(帮一点忙)

例句

用作不及物动词 (vi.)

1. I will lend you a helping hand if you are in trouble.
   你如有困难，我会助一臂之力的。
2. The vicar asked the congregation for volunteers to lend a hand with the preparations for the Harvest Festival.
   教区牧师请求全体教徒自愿为收获节的筹备工作助一臂之力。

词汇搭配

• in the turn of a hand 顷刻间