Phthalazone
[化] 2,3-二氮杂萘酮
🗣️ 情景例句
I love parades.
我爱看游行。
It was quite good. But it was awfully long.
班机很好，就是时间太长了。
It has to be tall because it is like a giant block and tackle,
井架必须很高，因为它像一个巨型滑轮组。