excavate
单词辨析：
指用手、工具、机器等挖洞、掘土。
dig a hole in the ground
在地上挖个洞
The dog is digging in the backyard.
狗在后院刨坑。
After digging down about 30m, they found a big iron box.
向下挖了大约30米，他们找到一个大铁盒子。
指挖洞或开掘通道。
The thief tried to burrow a narrow path downward.
小偷试图朝下挖出一条窄窄的通道。
The groundhog burrowed into the earth.
那只土拨鼠挖洞钻入了土里。
指把手伸进袋子、容器等深处找寻某物。
She delved into her schoolbag and brought out a pen.
她在自己的书包里翻找着，拿出一支钢笔。
Mary delved in her handbag for the passport.
玛丽在手提包里翻找护照。
指挖洞、开凿隧道等，也指科学家或考古学家发掘出古物。
It took them 10 years to excavate the tunnel.
他们花了10年时间才挖掘出这条隧道。
The archeologists are discussing how to excavate the buried ancient city.
考古学家们正在讨论如何发掘出被埋的古城。
指开凿隧道、挖地道等，也指昆虫挖掘洞穴。
The villagers on the remote island have been dreaming of tunnelling under the sea.
那座偏远小岛上的居民一直梦想着开凿海底隧道。
The grubs tunnelled into the trunk.
小虫子钻进了树干里。
相关例句：
It took a long time to excavate the ancient city of Troy.
挖掘古老的特少伊城，花了很长的时间。
"Permit to construct or erect any building, hut or shelter or excavate any cave"
建造或建立任何建筑物、棚屋或遮蔽处，或挖掘任何洞穴的许可证
A contractor was hired to drain the reservoir and to excavate soil from one area for replacement with clay.
雇了一个承包商抽干水库的水，挖掉一个区域的泥土后再用黏土填上。
Research of Intelligent Inference and Graphical Presentation of Excavate Coal Working Face Supersedure in Coal Mine
煤矿采煤工作面接替的智能推理与图形化研究
In the material of Microbiology of Environmental Engineering teaching, the idea of the teaching material should be excavate sufficiently in order to infiltrate quality education in science education.
在《环境工程微生物学》课程教学中，教师应充分挖掘教材的思想性，在教学内容中渗透素质教育。
Did you excavate the entire chimney?
把整个烟囱都掏空了吗？