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
We cannot leave this problem unattended.
这一问题我们不能置之不理。
I haven't heard from him for a long time.
我很久没有收到他的信了。
What do you do in the theatre?J:
你在剧院做什么工作？