基本解釋n.泥土層同根派生 dirt-bed相關詞英漢例句Alarmed at the first sound, we hit the dirt. 第一聲警報一響我們就迅速臥倒。She cleaned the dirt from her finger-nails. 她從指甲裡剔掉汙垢。I got an old lawn-mower as cheap as dirt. 我買了一臺老的割草機非常便宜。The brook warbled over its rocky bed. 小谿潺潺流過多石的河牀。Wheels leave grooves in dirt roads. 車輪在泥路上畱下凹痕。dirt-bed更多例句專業(yè)釋義地球科學汙層