🧩 词语组成解析
fifty
['fɪfti]
n. 五十个人;五十岁;五十年代;编号为五十的东西;
num. 五十;五十个;
adj. 五十的;五十个的;许多的;
three
[θri]
num. 三;三个;第三（章，页等）;
n. 三岁;三个人[东西];三，三个;
adj. 三的;三个的;
🗣️ 情景例句
On a studect visa, full-time work is not permitted.
持学生签证的话，不允许做全职工作。
She's free on Friday and Saturday.
她周五和周六有空。
Not at all, smiled Lucy. You're welcome!
“没关系，”露茜笑着说，“不用谢！”