Phenaphthacridone
[化] 苯并萘吖啶酮
🗣️ 情景例句
Take it side again .... OK, and switch. Stretch it out.
再侧身……好 左右交替。尽量伸展。
What track does the Metroliner leave from?
华纽特快从第几轨道开出？
It was my first flight. I was nervous when the plane took off.
我第一次坐飞机，起飞时我有点紧张。