Heptynoic acid
[化] 庚炔酸
🧩 词语组成解析
🗣️ 情景例句
We really don't have to be overly concerned.
我们真的不需要过分担心。
Will you plan to join me for dinner?
你要跟我一起吃饭吗？
The silence was suddenly broken when a large car, with its headlights on and its home blaring, roared down the arcade.
宁静突然被打破，一辆大轿车亮着前灯，响着喇叭，呼啸着冲进了拱廊街，