Hsi
abbr. 水平位置指示器（Horizontal Situation Indicator）；热应力指数（Heat-Stress Index）；恒生指数（Hang Seng Index）
🗣️ 情景例句
We can write letters. It's cheaper than calling.
我们可以写信就好，那比打电话便宜。
You've got to do something.
你一定要想办法。
Thanks a lot. Bye.
谢谢你。再见。