Hst
abbr. 超高音速运输机（Hypersonic Transporter）；高速试验机（High-Speed Tester）
🗣️ 情景例句
I'd love to, but I have to be up early tomorrow.
我非常感谢，可是明天我得早起。
This soup has a nice taste.
这道汤真好喝！
and in passing leaves and indefinable longing and regret.
并在消逝中给人留下不可名状的渴望和惆怅。