我对空气动力学一窍不通。I don't understand the aerodynamics.要取得胜利，你必须掌握很复杂的动力学知识。In order to succeed, you must master complicated knowledge of dynamics.这种控制要求颗粒磨损动力学和旋风分离器效率的知识.This control requires knowledge of attrition kinet...
He stole a glance at the clock behind her.他偷偷地看了一眼她背后的钟。He stole a Mars bar from the school tuck shop.他从学校小吃店偷了一条玛氏巧克力棒。Leroy stole up the hall to the parlor.勒罗伊偷偷穿过门厅走到客厅。...