英文词源
- knuckleball (n.)
- also knuckle-ball, baseball pitch, by 1909, from knuckle (n.) + ball (n.1). So called from the position of the fingers in throwing it. Related: Knuckleballer.
实用例句
- 1. Shifting an Internet friendship into the real world trickier a knuckleball.
- 将网络友谊搬到现实世界要比投蝴蝶球更加困难.
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