Formolysis
甲醛分解作用
🗣️ 情景例句
What is the cost?
费用是多少？
More of our worries come from within than from without.
烦恼发乎内者多于发乎外。
All at once, I noticed that my wife seemed to be filled with alarm.
突然，我注意到妻子十分惊恐。