Uncertain witness
[法] 动摇不定的证人
🧩 词语组成解析
witness
['wɪtnəs]
n. 目击者，见证人;[法]证人;证据;
vt. 出席或知道;作记录;提供或作为…的证据;
vi. 做证人;见证;
🗣️ 情景例句
What do you think of this place?
你觉得这个地方怎么样？
The blouse no longer fits me.
这件衬衣不再合我身了。
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。