Malonamide
丙二酰胺
🗣️ 情景例句
When you feel your life is threatened, just dial 999 to get help.
当你的生命受到威胁的时候，拨打 999 求救。
It's two blocks straight ahead.
笔直向前走2街区。
The coldest season of the year is winter.
一年里最冷的季节是冬天。