I felt so sleepy I couldn't stop yawning.我感到很困,止不住地打呵欠.Higgins begins half singing half yawning an air from La Fanciulla del Golden West.息金斯一边打着呵欠,一边唱着当时流行的小调.There's a yawning gap between rich and poor.贫富之间有一条...
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...