Specific requirements
[化] 特殊要求
🧩 词语组成解析
n. 调整需要量, 必需品；要求（requirement的复数）
🗣️ 情景例句
Will I be able to receive the goods by the end of September?
我可以在9月底以前收到货吗？
Didn't I tell you he's same size to me?
我没有说过他和我一样大小吗？
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。