Essential dysmenorrhea
[医] 自发性痛经
🧩 词语组成解析
n. 痛经\\n[医] 痛经
🗣️ 情景例句
It's so nice out.
外面天气真好。
It's cold this afternoon.
今天下午很冷。
I don't like autumn and winter.The days are short and the nights are long.The sun rises late and set early.
我不喜欢秋天和冬天，因为此时白天短而夜晚长，太阳升得迟而落得早。