Leucoriboflavin
无色核黄素
🗣️ 情景例句
There are so many things to consider. There's Michelle.
要考虑的事太多了。首先是Michelle。
What's the best price you're prepared to offer for your product?
你们的产品最优惠的价格是多少呢？
You work for the Overseas Engineering Company, don't you?
你在海外工程公司上班，是吗？