vt. 使凹陷，使塌落；在…挖洞穴>> View more sentences for this word.

n. 警告；中止诉讼手续的申请；货物出门概不退换；停止支付的广告>> View more sentences for this word.

n. 清道夫；食腐动物；拾荒者；[化]清除剂>> View more sentences for this word.

vt. 打扫；排除废气；以…为食>> View more sentences for this word.