Pentaborate
五硼酸盐
🗣️ 情景例句
Good evening, how may I help you sir?
晚上好，你需要帮助吗？
I hope you change his decision.
我希望你改变他的决定。
The efficiency is greatly raised,and the intensity of labor is decreased.
工作效率大大地提高了，而劳动强度却降低了。