adv. (坐、倒、躺)下;向下;(表示范围或顺序的限度)下至;
prep. (从高处)向下;(表示位置)在…的下方;(表示方向)沿着…向下;(表示时间)自…以来;
adj. 向下的;沮丧的;计算机或计算机系统停机;(以…)落后于对手的;
n. (鸟的)绒羽;绒毛;软毛;汗毛;
vt. 放下;(尤指大口或快速地)喝下;使摔倒;击落(敌机等);
vi. [常用于祈使句中]下去;下来;卧倒;下降;
🗣️ 情景例句
This has been a great learning experience for us, Marilyn.
这对我们是一次很好的学习经验, Marilyn。
Hide one's talents in a napkin.
埋没自己的才能。
it requires 97 per cent less energy to travel the quarter of a million miles from the Moon to Earth-orbit than the 200 mile-journey from Earth's surface into orbit!