Pentaborate
五硼酸盐
🗣️ 情景例句
It'll be like old times for you and me.
你我过去的美好时光又会重现。
Practice what you preach.
言必行。
It happens every night. The noise wakes me up. Would you please not do this?
每晚都这样。这声音总吵醒我！请你别这样，好吗？