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英语 词库
pitch [pɪʧ] 动词
庸俗	tent
缩写, 地球科学	pitchblende
航空, 美国人	A series of predetermined manoeuvres prescribed for the VFR arrival of military aircraft often in formation for their entry into the VFR aerodrome traffic circuit and for landing
PITCH [pɪʧ] 缩写
缩写, 军队, 航空	pitch