You can always fall back on him when you are in difficulties.你碰到困难时总是可以求助于他.Doctors sometimes fall back on old cures.有时医生们求助于老的疗法.When necessary, instinct is the most reliable resource you can fall back on.必要时，最保险的办法就是凭直...
The tour package features a three - day, two - night cruise up the Nile River.这个套装旅游以尼罗河三天两夜邮轮之旅为号召.I've always wanted to go on a cruise...我一直想坐游轮旅游。1,654 passengers were transferred at sea to a Norwegian cruise shi...
该你掷了(如该你掷色子).It's your throw, eg your turn to throw the dice.要求对称波函数的粒子, 如兀介了, 叫做玻色子.Particles, such as pi - mesons, requiring symmetric wave functions are called bosons.在超导体中, 玻色子是在费密表面形成的束缚态电子对.In superconductors,...