Dbmc
[化] 二异丁基甲酚
🗣️ 情景例句
Please, sit down. What can I do for you?
请坐下。我能为你们做什么呢？
Soorow is at parting if at meeting there be laughter.
离别多愁恨，相见尽笑声。
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）