-ing
a. 表示行为、状态、情况等；表示...行业、...学、...法；表示总称及材料 与...有关的东西
🧩 词语组成解析
abbr. 惯性导航与制导（Inertial Navigation and Guidance）；强中子发生器（Intense Neutron Generator）
🗣️ 情景例句
I would like a Coca.
我要可乐。
I have two tickets for a great movie. Why don't you come with me?
我有两张大片的电影票，你要同我一起去看吗？
Litter baskets have been placed under the trees, but people still throw their rubbish everywhere.
树下都已设置了废物筐，但是人们仍到处扔垃圾。