伴随着隆隆的低沉噪声，螺旋桨开始旋转起来。With a low-pitched rumbling noise, the propeller began to rotate.头顶上，直升机在呼啸，巨大的螺旋桨叶片搅动着空气。Overhead, the chopper roared and the big blades churned the air.发动机使螺旋桨旋转起来。The engine turned a propeller....
He picked his teeth with a toothpick.他用牙签剔牙.The other end of the twig is sharpened into a sharp point to use as a toothpick.细枝的另一端被削尖用作牙签。I had to use a toothpick to remove the food that was stuck between the teeth.我不得不用...
His company, TogetherSoft , also does consulting and training on FDD.他的公司TogetherSoft, 也是咨询和培训FDD的.The main description of FDD is in Peter Coad et al's UML in Color book.有关FDD的主要描述在PeterCoad等人的书UMLinColor中.FDD reduc...