Step-down
a. 降低電壓的, 遞降的\\nn. 下車, 下臺(tái), 減少
?? 詞語(yǔ)組成解析
step
[st?p]
n. 步，腳步;步驟，手段;步調(diào);級(jí)別;
vt.& vi. 舉步，行走;踩，踏上;跨入;輕快地走;
vi. 踏，踩;走;
vt. 跳舞;邁步;使成階梯狀;
down
[da?n]
adv. （坐、倒、躺）下;向下;（表示范圍或順序的限度）下至;
prep. （從高處）向下;（表示位置）在…的下方;（表示方向）沿著…向下;（表示時(shí)間）自…以來(lái);
adj. 向下的;沮喪的;計(jì)算機(jī)或計(jì)算機(jī)系統(tǒng)停機(jī);（以…）落后于對(duì)手的;
n. （鳥(niǎo)的）絨羽;絨毛;軟毛;汗毛;
vt. 放下;（尤指大口或快速地）喝下;使摔倒;擊落（敵機(jī)等）;
vi. [常用于祈使句中]下去;下來(lái);臥倒;下降;
??? 情景例句
I really appreciate you coming over to help me with my math.
我真的很感謝你過(guò)來(lái)幫我補(bǔ)習(xí)數(shù)學(xué)。
Take care of the pence and the pound will take care of themselves.
金錢積少便成多。
The only way that they can preserve their history is to recount it as sagas -- legends handed down from one generation of another.These legends are useful because they can tell us something about migrations of people who lived long ago, but none could wri
他們保存歷史的唯一辦法是將歷史當(dāng)作傳說(shuō)講述，由講述人一代接一代地將史實(shí)描述為傳奇故事口傳下來(lái)。