Jfa
abbr. Japan Fluorocarbon Association 日本氟碳化合物协会
🗣️ 情景例句
Don't open the door if you don't know who it is.
如果有陌生人敲门不要开门。
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。
In the young there is a justification for this feeling.
青年人有这种感觉是情有可原的。