Pre-drill
預鉆孔
?? 詞語組成解析
abbr. 煉油工程師（Petroleum Refining Engineer）
drill
[dr?l]
n. 操練;鉆頭;軍事訓練;（應對緊急情況的）演習;
vt.& vi. 鉆（孔）;打（眼）;操練;訓練;
vt. 作…演習，操練;
??? 情景例句
What do you suppose he wanted?
你認為他想要什么？
He went to the post office to mail a letter.
他去了郵局寄信。
George was not too upset by his experience because the lady who owns the sweet shop heard about his troubles and rewarded him with large box of chocolates.
不過，此事并沒使喬治過于傷心，因為糖果店老板娘聽說了他遇到的麻煩后，賞給他一大盒巧克力。