Epidemiological investigation
[医] 流行病学调查
🧩 词语组成解析
n. (正式的)调查,研究;侦查;科学研究;学术研究;
🗣️ 情景例句
It's tough getting an O.K. from the boss.
很难从老板那听到声“同意”。
There is a crook(=affliction,trial) in the lot of every one.
人生总有倒楣事;人生总有不如意处。
is the slowest and has travelled round the earth through the surface rocks.
是最慢的,是围绕地球通过表面岩石传来的。
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