Achrestic
失利用性的, 利用不能的
🗣️ 情景例句
Do you have any plans after class today?
今天下课后你有什么安排吗？
My mouth is watering.
我在流口水了。
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。