Pertitanic acid
[化] 过钛酸
🧩 词语组成解析
🗣️ 情景例句
I'm wiped out by the time I get off work.
下班时，我都累趴下了。
Care and diligence bring luck.
谨慎和勤奋，带来好运气。
Please push the ladder against the wall.
请把梯子靠在墙壁上。