Hst
abbr. 超高音速运输机（Hypersonic Transporter）；高速试验机（High-Speed Tester）
🗣️ 情景例句
Oh, let's go upstairs and prepare Grandpa's room.
对了，我们上去准备一下爷爷的房间。
I leave the house at eight a.m. each day.
我每天在上午8点离开房子。
I was doing eighty when I overtook you.
我是以第小时80英里的速度赶上你的。