Pecking
v. 啄, 啄食, 小口地吃( peck的现在分词 ); 匆匆地吻
🗣️ 情景例句
Really? I'm not much of an outdoor person.
真的？我不是很喜欢户外活动的人。
That's not like him.
那不象是他的风格。
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。