Cffc
abbr. counterflow film cooling 逆流薄膜冷却
🗣️ 情景例句
He's gone for the day.
他整天都不在。
Mr. President, ladies and gentlemen, and all the distinguished guests.
主席先生，女生们先生们，各位贵宾们。
It weighed nearly 500 pounds.
重达500磅左右。