Amnioembryonic
[医] 羊膜胚的
🗣️ 情景例句
He always makes me laugh.
他总是让我笑。
I need the change for the stamp machine.
我需要投入自动售邮票机的零钱。
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。