Grammaticalization
语法化
🗣️ 情景例句
I see him on the train every day but we are not on speaking terms.
我每天都在火车上见到他，但彼此没有说过话。
Suspicion is the poison of true friendship.
猜疑伤害莫逆之交。
They then knew that they had discovered the cause of the fire.
这时调查人员知道他们找到了发生火灾的原因了。