Macker
炭质页岩
🗣️ 情景例句
I like to study in the library because it's so quiet.
我喜欢在图书馆学习因为那儿很安静。
I sometimes stay up till midnight.
我有时候熬到半夜。[一般现在时]
He suddenly appeared in the party.
他突然在晚会上出现了。