Mizzonite
[矿]针柱石
🗣️ 情景例句
How's your son getting on with his English?
你儿子的英语学得好吗？
We first make our habits, and then our habits make us.
我们先养成习惯，然后习惯又左右我们。
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。