Phthalidene
2-苯并[C]呋喃酮基
🗣️ 情景例句
Normally I go to bed at about ten o'clock.
通常我在 10:00 睡觉。
When an opportunity is neglected, it never comes back to you.
机不可失，时不再来。
in the end, we stay at home and look after everything!
我们呆在家里来照看一切。