入射角等于反射角.The angle of incidence equals the angle of reflection.冬季小入射角阳光的透射可以增加室内亮度.Low - angle winter sunlight penetration can give rise to glare.这种情况中的入射角是三十度.The incident angle in this case is 30 degree....
They agreed to bid the picture up to 4,500 francs.他们同意将这幅画的价格提至4,500法郎。The price of grapes had shot up to 32 francs a kilo.葡萄价格大幅上涨，达到每公斤32法郎。A surcharge of 40 francs was added to our bill.我们的账单上加了40法郎的附加费....
那男孩手指夹在办公室门缝里,大声号叫.The boy caught his finger in an office door and yowled.受伤的动物痛得直号叫.The wounded animal roared out in pain.那只猫疼的号叫起来.The cat yowled his pain....