【美剧常见短语】

I'm speechless:说不出话来
what the heck = what the hell 什么
a big bang大吃一惊(=surprise);
重击 give sb a heart-attack 吃惊,害怕
thick in the head/thick:大脑迟钝,笨
step on it:赶快,加把劲,加大油门
give it everything you've got竭尽全力
just in case 以防万一