Tau.
[医] 寿命(放射性物质)
🗣️ 情景例句
Perfect! You picked the right place.
棒透了，你选对了地方。
Rodney began to sob with grief.
罗杜尼悲伤得开始哭了起来。
He asked me some personal questions, but I would never answer them.
他问了我几个个人问题，我根本不愿回答。