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
Never in my life have I seen such a mess!
我这辈子没见过这么乱的地方。
A gloved cat catches no mice.
戴手套的猫抓不到老鼠。
but it does mean that noise is less dangerous than, say,
但它确实说明，噪音的危险性--比如说--