Migration velocity
[化] 渗移速度
🧩 词语组成解析
migration
[mai'ɡreiʃən]
n. 迁移，移居;
🗣️ 情景例句
You handed them to me.
你将它们给了我。
Buck up, Billy, Enjoy yourself.
振作起来，比利，快快活活地过日子。
I want some envelopes,please.
请给我拿几个信封。