Heaf
abbr. heavy-end aviation fuel 重尾航空燃料，航空重油
🗣️ 情景例句
Get this place picked up immediately. do you read me?
马上把这里收拾干净，听明白没有？
Skiing is such a difficult sport that it's more work than play.
滑雪是非常困难的运动，真所谓工作高于游戏呀。
Its origin is still a mystery now.
它的起源至今仍是个谜。