Peltogen
一种浮选剂
🗣️ 情景例句
No one knows for certain what happened, but it's a fair bet that it was not an accident.
没有人知道究竟发生了什么，但几乎可以肯定这并非意外。
Excuse me. Where is No.5 Street?
对不起，第五大街在哪儿？
Boy, I'm really glad to hear that.
哇，听了真叫人高兴。