Submonolayer
亚单原[分]子层
🗣️ 情景例句
It's unsafe for girls to go out alone at night.
女孩子晚上一个人外出很危险的。
You cannot break the contract without any good reason.
如果没有什么正当理由，你们不应撕毁合同。
It's the most expensive model in the shop.
这是店里最贵的型号。