Pentacetate
五乙酸盐
🗣️ 情景例句
Can I help?
我能帮你吗？
Nothing is impossible (or difficult) to the man who will try.
天下无难事，只怕不努力。
But it is also used very widely as a foreign language in many other countries in the world.
然而在世界上其他许多的国家英语也被当作一门外语广泛地使用。