They dexterously pour the water through the strainer, and then hold the strainer up to the sunlight. As they expected, there are several thin gray larvae, about half a centimeter long, twisting themselves into S-shapes to spring about in movements so rapid that they dazzle the eye.
只見他們俐落地濾去砂土，再映著陽光細細審視，果然看到一條條約半公分長，灰細線般的孑孓正以 S 型扭動著，一忽而跳左、一忽而彈後，動作快得教人眼花撩亂。