Fluohydrocarbon
氟代烃
🗣️ 情景例句
Life has its ups and downs, but it certainly has its rewards.
人生有沉也有浮，但是无论怎样都确有其价值。
Choice of the end covers choice of the means.
选择目的包含著选择手段。
The farm was owned by two brothers, Joe and Bob Cox.
恩得利农场属于乔。考科斯和鲍勃。考科斯兄弟俩所有。