Trianion
三陰離子
??? 情景例句
When can I photograph a class?
我何時才來上課呢？
OK. That'll be $12.00, please.
到了。請付12美元。
The bison grows to a shoulder-height of 1.5 metres and can weigh 1100 kilograms.
野牛可以長到肩高1。5米，重達1，100公斤。