Methods Dip way for mosquito and topicd application for housefly.方法分别用浸渍法和点滴法测定淡色库蚊和家蝇的抗药性.Photoperiod produces little influence on the diapause of housefly larvae.光周期对家蝇幼虫滞育的影响不大.Objective : To study the effect of house...
The hawk swooped and soared away carrying something.那只鹰向下猛冲，抓住东西后又展翅高飞了。A hawk hovered over the hill.一只鹰在小山的上空翱翔。The hawk poised in mid-air ready to swoop.老鹰在半空中盘旋，准备俯冲。...
The ripe wheat undulated in the Breeze like the incoming tide.成熟的小麦象潮水般随风起伏.His body slowly undulated in time to the music.他的身体随着音乐的节拍慢慢摆动。The sail undulated gently in the breeze.帆在微风中缓慢地波动.Fairway 4:405 yd , par 4, a fl...