Pentaborate
五硼酸盐
🗣️ 情景例句
It works!
有效！
Los Angeles. I stayed with my brother.
落杉矶。上我兄弟家去了。
He was rather elderly with grey hair and clear blue eyes.
他上了年纪，有着灰白的头发和明亮的蓝眼睛。