Catechizing
v. 问答式讲授( catechize的现在分词 )
🗣️ 情景例句
The pollution in Beijing is alarming.
北京的污染给人们敲起了警钟。
They cannot help but be grieved by the death of a friend.
眼见朋友死亡，自己却无能为力，他们感到深深的悲哀。
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。