knuckleball

n.[棒](投手投出的)不旋转球

Shifting an Internet friendship into the real world can be trickier than hitting a knuckleball. 将网络友谊搬到现实世界要比投蝴蝶球更加困难。

But Wakefield used his trademark knuckleball to set up a sneaky fastball, ducking and weaving the New York bats in tight spots. 但伟克飞尔用他的蝴蝶球搭配著诡异的直球，屡次在紧要关头解决洋基的打者。