Gac
abbr. 加拿大地质协会（Geological Association of Canada）；全局程序集缓存（Global Assembly Cache）；中华人民共和国海关总署（The Ministry of Foreign Trade and Economic Cooperation （MOFTEC） and the General Administration of Customs）
🗣️ 情景例句
I don't know.
我不知道。
Reckless youth makes rueful age.
虚度青春，悔恨无已。
In summer it is often too hot, and in winter it is too cold.
夏天常常太热，冬天又常常太冷。