Stenometer
速记测距仪
🗣️ 情景例句
Thanks, Mrs. Stewart.
谢谢， Stewart太太。
There'll be time for questions at the end.
最后会有时间发问的。
a trough (the lowest point), a height (the vertical distance from the trough to the crest),
波谷（最低点）、浪高（从波谷到浪峰的垂直距离）