Heaf
abbr. heavy-end aviation fuel 重尾航空燃料，航空重油
🗣️ 情景例句
That's a great drawing of your girlfriend, but you should emphasize the nose a bit more.
你的女友这张画像很漂亮，但你应该把她的鼻子再勾画一下。
Please try to be congenial and welcome the guests with a small.
请用笑脸愉快地迎接客人吧。
How do you do ? Are you having a nice time in Beijing?
你好！你在北京玩得愉快吗？