n. 河流,小河,川,溪;潮流,趨勢(shì),傾向;(事件等的)連續(xù),(財(cái)富等的)滾滾而來;流出,流注,一連串;
vt.& vi. 流,流動(dòng);
vi. 飄揚(yáng);招展;魚貫而行;一個(gè)接一個(gè)地移動(dòng);
vt. 按能力分班(或分組);按能力分班(或分組);
??? 情景例句
Listen, Richard,doing aerobics for an hour is a lot different than lifting weights.