Postcentrum
后椎体
🗣️ 情景例句
His studies haven't been inproving lately.
他的学业最近没什么进步。
Excuse me I couldn't write you sooner.
对不起我不能尽快给你写信。
Great! Could you bring it to school tomorrow?
好极了！你明天能把它带到学校来吗？