Call balls and strikes behind the plate.

在本垒板后判为好球或坏球。

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Playing to the referee does not always require such subterfuge. In baseball, umpires are supposed to call balls and strikes based on where a ball crosses home plate.

欺骗裁判不一定都得用这样的花招，在棒球比赛中，司球裁判的作用是根据投手投出的球飞过本垒的位置来判断好球、坏球和三振。

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Ultimately, the day will come where everything except balls and strikes will be reviewable in baseball.

FORBES: Baseball's Unwillingness to Expand Instant Replay is Bad Business

In baseball, umpires are supposed to call balls and strikes based on where a ball crosses home plate.

ECONOMIST: Cheating in sport

During Justice Roberts's confirmation hearings back in 2005, he described judges as umpires whose job it is to call balls and strikes as he sees them.

WSJ: McGurn: Chief Justice Roberts Taxes Credibility