🧩 词语组成解析
adv. 在上；在前
n. 表现主义
🗣️ 情景例句
I certainly am. May I help you?
我是，我能帮您什么忙吗？
Measure is treasure.
适度是宝。
Now, this is the chemistry lab. Have you been in this lab before?
好啦，这是化学实验室。你们以前到过这个实验室吗？