Keep your eye on these jokers, you never know what they will come up with.留神那些活宝，你永远也不知道他们会想出什么样的主意。Some jokers have let down the back tyres of my car.有人开玩笑把我汽车后轮胎的气放掉了.In many modern packs the jokers are printed in diff...
I should have asked him for a shot of penicillin.我应当让他给我打一针青霉素的.She injected the patient with penicillin.她给病人注射了青霉素.Penicillin was an extremely significant medical discovery.青霉素是极其重要的医学发现....