Pentacetate
五乙酸盐
🗣️ 情景例句
I wish the weather was like this all year.
我希望整年都是这样的天气。
We are anxious to know how long it will take you to deliver the goods.
我们急于知道贵方多长时间能交货。
The sun was shining and the sky was crystal clear.
阳光闪烁，天空湛蓝。