Three-pole switch
[計(jì)] 三極開關(guān)
?? 詞語組成解析
three
[θri]
num. 三;三個(gè);第三（章，頁等）;
n. 三歲;三個(gè)人[東西];三，三個(gè);
adj. 三的;三個(gè)的;
pole
[pol]
n. [物]極點(diǎn)，頂點(diǎn);地極;桿;兩極端;
vt.& vi. 用篙撐船，擺船;
vt. [航海] 用一根桿來推動(dòng);以桿推進(jìn);以桿支撐（植物）;用桿子擊打、戳、或攪拌;
vi. 用滑雪杖加速;
switch
[sw?t?]
n. 開關(guān);轉(zhuǎn)換，轉(zhuǎn)換器;軟鞭子;[信]接線臺(tái);
vt.& vi. 轉(zhuǎn)變，改變;轉(zhuǎn)換;關(guān)閉電流;鞭打;
vt. 轉(zhuǎn)換;揮動(dòng)（棍棒、鞭子等）;迅速轉(zhuǎn)動(dòng);鞭打;
vi. 交換;調(diào)換;
??? 情景例句
Smoking is harmful to your health.
吸煙有害健康。
She's perfectly reasonable in her demands.
她的要求完全合情合理。
Because the Moon has only an eightieth of the Earth's mass,
因?yàn)樵虑虻闹亓恐挥械厍虻?/8，