Tau.
[医] 寿命(放射性物质)
🗣️ 情景例句
Not exactly.
不完全。
If it doesn't rain tomorrow, will you do a favor for me?
如果明天不下雨的话，你会帮我忙吗？
Now she's holding it for Jim. Jim is climbing up the ladder.
现在她在给吉姆扶着梯子。吉姆正在爬上梯子。