Copyrine
[化] 2,7-萘啶; 2,7-二氮杂萘
🗣️ 情景例句
Tell him, Philip.
告诉他， Philip。
The doctor said it's just a litter heat rash, There's nothing to worry about.
医生说只是出疹子，不需要担心。
The main school holidays are from mid-December till early February when the days are long and warm.
学校主要的假期从12月中旬起至第二年的2月初为止，这段时间白昼很长，气候也暖和。