Jays
n. 鸟, 松鸡；橿鸟（jay的复数形式）
🗣️ 情景例句
No sweet without sweat.
不流汗就没有幸福。
Who are those people?
那些人是谁？
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。