Pre-selection
[医]预筛, 预选
🧩 词语组成解析
abbr. 炼油工程师（Petroleum Refining Engineer）
🗣️ 情景例句
All set for eating.
吃饭用的一切都准备好了。
Did you give it to him yourself?
你自己亲自交给他吗？
But instruments far more delicate than that were needed if any really serious advance was to be made.
但是，如果要取得真正重大的进展，需要有比这种装置精细得多的仪器。