Pentaborate
五硼酸盐
🗣️ 情景例句
He is quick-witted.
他反应灵敏。
I want to reserve a seat from los angeles to tokyo.
我要预订一张从洛杉矶到东京的机票。
It is only someone looking on from outside that can inject the dangerous thoughts.
只有外部的旁观者才能灌输危险的思想。