侵入qīnrù 1.用武力强行进入境内{invade; intrude into; make incursions into; make inroads into; cross the border by force}: ～边境。{intrude into the border frontiers} 2.(外来的或有害的事物)进入内部{(of extraneous or harmful things) invade the interior}: 由于冷空气～,气温急剧下降。{The temperature dropped drastically owing to the intrusion of a cold front.}