Trades
n. 交易；商业, 各种营业；贸易（trade的复数）
🗣️ 情景例句
It's time we hired a secretary to answer the phones.
我们早就该请一个秘书接听电话了。
It is too late to shut the stalbe door when the steed is stolen.
失马锁厩，为时已晚；贼去关门，为时已迟。
She has been to school.
她上学去了。