单词	be busy in
释义	be busy in 忙于
随便看	negative thermal expansion negative thermion negative thermotropism negative thinking negative thixotropy negative thread negative throat nozzle negative thrust duration negative thrust propeller negative-to-negative negative-to-positive development negative torque negative torque control negative torque signal negative torsion negative torsional moment negative total negative totality negative-transconductance oscillator negative transconductance oscillator negative transfer negative transfer (effect) negative transient negative transition negativetransition 垳垴垵垶垷垸垹垺垻垼浮物浮猾浮现浮瓜沉李浮生浮留浮白浮皮浮皮儿浮皮潦草