brush [sth] backvtr phrasal sepphrasal verb, transitive, separable: Verb with adverb(s) or preposition(s), having special meaning, divisible--for example, "call off" [=cancel], "call the game off," "call off the game."
(baseball)
（为迫使击球员退开而）投出头侧球 wèi pò shǐ jī qiú yuán tuì kāi ér tóu chū tóu cè qiú