Lead polarity of a transformer
[電] 變壓器的引線極性
?? 詞語組成解析
lead
[lid]
vt. 領(lǐng)導(dǎo);引導(dǎo);指揮;
vi. 領(lǐng)導(dǎo);導(dǎo)致;用水砣測深;
n. 鉛;領(lǐng)導(dǎo);榜樣;槍彈;
adj. 領(lǐng)頭的;最重要的;領(lǐng)先的;
of
[?v]
prep. 關(guān)于;屬于…的;由…制成;
aux. 助動詞 [非標(biāo)準(zhǔn)用語、方言] =have [主用于虛擬語氣];
transformer
[tr?ns'f?rm?]
n. 變壓器;促使變化的（或人物），改革者;
trans轉(zhuǎn)變+form形狀+er表人\/物 → 變壓器，轉(zhuǎn)換器，變形金剛
??? 情景例句
Those were great days and we were very happy.
那些日子美好極了，我們過得很幸福。
It is a long lane that has no turning.
路必有彎。
Are there any hills in the picture?
畫里面有山嗎？