🧩 词语组成解析
abbr. substantial gainful activity 执著的惟利是图的行为
infant
['ɪnfənt]
n. 婴儿，幼儿;未成年人;初学者，生手;
adj. 婴儿的，幼儿的;幼稚的，幼小的;初期的;未成年的;
in不 + fant=fans说话 →不能说话的 → adj.婴儿的
🗣️ 情景例句
The film was quite enjoyable.
这部电影很有趣。
Progress is the activity of today and the assurance of tomorrow.
进展即今日的活动和明日的保证。
When Aunt Huang came back, I was so tired. In the evening Liu Ming came to see me.
当黄阿姨回来的时候，我累极了。晚上刘明来看我。