Obiturin
荧光素钠
🗣️ 情景例句
You don't need to do that, Grandpa.
你不用这样，爷爷。
How much will it cost?
这种商品成本价是多少？
If I had been, I would not have been able to get home for lunch. '
如果真戴着它，我现在就不能回家来吃午饭了。”