Hst
abbr. 超高音速运输机（Hypersonic Transporter）；高速试验机（High-Speed Tester）
🗣️ 情景例句
Have you got any plans for celebrating your birthday?
你计划好怎样庆祝你的生日了吗？
I'll keep that in mind.
我会记住的。
But where's my cup?
可我的杯子上哪里去了？