前级扩大机 qiánjíkuòdàjī preamplifier Origin Definitions Defs Strokes Stroke Words Sentences Sents 前 qián locativenoun front (bound form) front; forward; ahead; facing direction. Use 前边 qiánbian or 前面 qiánmiàn for the standalone noun.级 級 jí nounadjective level level; rank; grade; an order or position in a hierarchy扩大机 擴大機 kuòdàjī amplifier an electronic device for increasing the power of a signal, especially for audio