Incomplete pregnancy
[医] 未足月妊娠
🧩 词语组成解析
pregnancy
['pregnənsi]
n. 怀孕，妊娠;丰富，多产;意义深长;
🗣️ 情景例句
The horse leaped a stream.
马越过小溪。
Nice to meet you.
很高兴认识你。
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。