🧩 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
She plays hard.
她玩起来也拼命。
Is it true that manufacturing of automobiles is a major industry?
汽车生产是主要工业是真的吗？
Rex soon became an expert at opening the gate.
雷克斯很快成了开门的专家。