Metastructure
次显微组织
🗣️ 情景例句
I'm a senior here, so let me know if I can help you with anything.
我是大四的老生，有什么能帮忙的尽管说一声。
He is playing on the see-saw in the yard.
他正在院子里玩跷跷板。
Where have you been?
你去哪儿了？