He snapped the cap on his ballpoint.他吧嗒一声把笔帽扣在了圆珠笔上。I changed the ink cartridges in my ballpoint pen.我换了圆珠笔里的墨水芯.You can buy the ballpoint pen anywhere.你到哪儿都能够买到这种圆珠笔.The diary comes complete with a gold-coloured ballpoi...
He snapped the cap on his ballpoint.他吧嗒一声把笔帽扣在了圆珠笔上。There is an overflow of cheap ballpoint pens in the market.市场上圆珠笔泛滥.I changed the ink cartridges in my ballpoint pen.我换了圆珠笔里的墨水芯....
A crawler, device of girth welds testing outside pipeline is developed successfully.成功地研制了管道外检测机械装置—爬行器.The pool is divided into three sections with a crawler lane for beginners.泳池分三部分，有为初学者而设的慢泳道。The Google crawler does...
Mr Sparrow has acted with commendable speed.斯帕罗先生行动之快值得赞扬。A sparrow may be small but it has all the vital organs.麻雀虽小,五脏俱全.The sparrow crossed the lawn in a series of hops.那麻雀一蹦一跳地穿过草坪....