Verofylline
二氢二甲基甲丁基嘌呤二酮
🗣️ 情景例句
There's your sleeping bag.
这是你们的睡袋。
I feel guilty because I haven't written her lately.
因为我最近没给她写信，我感觉到有罪。
I could hardly speak.
我简直说不出话来。