from which can be seen the strata the drill has been cutting through.
从中能看出钻头所钻透的地层。
新概念英语第四册 Lesson 13 The search for oil

📚 句中词汇解析

从本句中提取的重要词汇

strata ['streitə] 词根: str-
n. 地层;岩层( stratum的名词复数 );地层;社会阶层;
"people from all social strata"
来自不同社会阶层的人
近义:stratums
drill [drɪl] 词频2 词根: dr-
n. 操练;钻头;军事训练;(应对紧急情况的)演习; vt.& vi. 钻(孔);打(眼);操练;训练; vt. 作…演习,操练;
💡 锥哦(谐音): 练习 钻孔
"After a long drill, the commander told his men to fall out."
在操练了很长时间以后, 指挥官命令士兵们解散.
近义:instruction, learning, schooling, teaching, training, tuition
cutting [['kʌtiŋ]]
n. 切断, 切下, 路堑\\n[化] 切屑
近义:snippet, clipping, snip, trimming, clip, trim 反义:innocuous, offenceless, safe, unoffending, benign, harmless
seen [si:n] 词频1
v. 看见( see的过去分词 );观看;领会;考虑;
"The aforementioned person was seen acting suspiciously."
有人看见前面提到的那个人行动可疑。

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