Pre-tensioner
预紧器
🧩 词语组成解析
abbr. 炼油工程师（Petroleum Refining Engineer）
n. 拉紧器, 张紧装置；皮带张力器
🗣️ 情景例句
Part of the building for older people,
建筑物中的一部分给老年人用，
A good book is a best friend who never turns his back upon us.
一本好书，莫逆之交。
There were coins everywhere.We looked for them, but we could not find them all.
到处都是硬币。我们虽然找了，但没有把它们全部找到。