🧩 词语组成解析
preliminary
[prɪ'lɪmɪnɛri]
adj. 初步的，初级的;预备的;开端的;序言的;
n. 准备工作;预赛;初步措施;（对学生等的）预考;
pre预先+limin门槛，限制+ary形容词后缀→入门以前→初步的
exam
[ɪg'zæm]
n. <口>考试;测验;
🗣️ 情景例句
A kind of a fifty-year anniversary reunion.
等于是五十周年重逢聚会。
She's not at her desk right now.
这会儿她不在办公室办公。
I saw him playing football on the playground.
我看见他在操场上踢足球。