我去年因病耽误了很多功课。I missed a lot of school through illness last year.因病请假不扣工资.No deduction in pay is made for absence due to illness.因病而缺课的学生不下十名.No fewer than 10 students were absent through illness....
The forebody design a key issue for hypersonic airbreathing vehicle.前体设计是吸气式高超声速飞行器设计的关键之一.It would reach hypersonic speeds -- five times the speed of sound.也就是说,要使飞机达到特超音速—即音速的五倍.hypersonic aerodynamics高超音速空气动力学rarefied...