Hff
abbr. horizontal falling film 水平降落液膜
🗣️ 情景例句
Yes, I went to the aerobics class today.
去了啦， 我上了有氧运动课了。
I read a magazine in bed.
我躺在床上看杂志。
Some plays are so successful that they run for years on end,
有些剧目十分成功，以致连续上演好几年。