Oars
n. 桨；桨手（oar的复数）
🗣️ 情景例句
You could call it a community unity plan.
你可以称它为社区团结计划。
You must go easier on yourself; you look exhausted.
你不可以太勉强，你的身体似乎太疲劳了。
and by measuring the time interval between the taps and the receipt of the echoes, the depth of the sea at that point can be calculated.
测出回声间隔的时间，便可算出该处海洋的深度。