动词 excavate:

1. recover through digging

2. find by digging in the ground

3. form by hollowing

4. remove the inner part or the core of

excurve外凹EXCn.开挖(激励器；排气关闭)excercise therapy for amputees截肢医疗体育Excision of lesion of duodenum十二指肠病损切除术Excision of scar of epicardium心外膜瘢痕切除术Excision of pelvirectal tissue盆腔直肠组织切除术Excision of gasserian ganglion半月神经节切除术excision of carotid body tumor颈动脉体瘤切除术excretory-secretory antigens排泄分泌抗原Excision of cartilage of joint关节软骨切除术Excision of adenoma of thyroid甲状腺腺瘤切除术Excision of secondary membrane继发性膜性白内障切除术

1. Those workers were employed in excavating the foundations of the building.
   那些工人忙于挖掘建筑物的基础。
2. After excavating some ceramic pieces from the site - now farmland - they confirmed a Roman villa once stood there.
   这个地方现在是一处农田，专家们在挖掘到里头一些陶器的残骸后确认，这里过去确实存在著一个罗马村庄。