圆石用英语怎么说？

圆石

• [yuán shí]
  roundstone，cobble，cobblestone

例句

• Old roads used to be paved with round stones to help the horses to walk easily. 旧时的道路常用圆石铺路面,使马匹易于行走.
• Roger slams the lever holding the boulder and it goes careening down. 罗杰用力敲了夹着圆石的杠杆,那个圆石就斜着掉下来.
• He hid behind a great bowlder and fell to listening. 他躲在一块大圆石后面,静静地听着.
• The riverbed was strewn with big boulders. 河床上散布着很多大圆石。
• ...a huge round mass of smooth rock protruding from the water... 一块光滑的巨型圆石露出水面

词组搭配

• 圆石岛
  circular-sweep phase shifter