adj. 警覺(jué)的,警惕的,注意的;思維敏捷的;活潑的;
n. 警報(bào);警戒狀態(tài);
vt. 向…報(bào)警;
al=ab加強(qiáng)+ert直→警惕的
??? 情景例句
you wouldn't need as much money.
不需要花多少錢。
No, I don't think so.
不,我想不會(huì)。
The currents of air that the walls of the ship direct upwards, as well as in the line of its course, are enough to give the great bird with its immense wings sufficient sustenance and progress.