他们苦学了11个月的强化课程，拿到了学位。They secure their degrees by slogging through an intensive 11-month course.基本原则已得到进一步强化。The ground rules have been firmed up.它的窗户装的是强化玻璃。Its windows were of reinforced glass....
A copter appeared in the sky above them.一架直升机出现在他们上空.Cryo Copter - $ 1600 - ( Heightened Clearance ) - This is a support helicopter.严寒直升机 —— 1600 ( 需要高级清除 ) —— 这是个支援直升机....