The geologist needs to know what rocks the drill has reached,
地質學家需要知道鉆頭已經到達什么樣的巖層，
新概念英語第四冊
Lesson 13 The search for oil
?? 句中詞匯解析
從本句中提取的重要詞匯
v. 知道;了解;認識;確信;
n. 知情;
?? 知道know的人愛說自己不no知道
"Do you know your ABC?"
你認識所有的字母嗎？
近義：learn, understand, get, cognize, comprehend, meet
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;
?? 錐哦(諧音）: 練習 鉆孔
"After a long drill, the commander told his men to fall out."
在操練了很長時間以后, 指揮官命令士兵們解散.
近義：instruction, learning, schooling, teaching, training, tuition
geologist
[d?i'?l?d?ist]
n. 地質學家，地質學者;
"The geologist found many uncovered fossils in the valley."
在那山谷里,地質學家發現了許多裸露的化石.