Petiolarea
端区
🗣️ 情景例句
Come on in, everybody.
大家请进来。
I'm going to be late.
我要迟到了。
But instruments far more delicate than that were needed if any really serious advance was to be made.
但是，如果要取得真正重大的进展，需要有比这种装置精细得多的仪器。