🧩 词语组成解析
undercover
[['ʌndə'kʌvə]]
a. 秘密从事的, 秘密的, 从事间谍活动的\\n[法] 暗中从事的, 秘密的
🗣️ 情景例句
That's fine with me. I can do it either day.
对我来说时间很适合。两天中哪一天我都可以。
It's faster but more expensive to ship goods by air.
空运较快但运费较高。
I can't type this letter.
我打不了这封信。