n. [機(jī)]動(dòng)力,功率;力量;政權(quán),權(quán)力;強(qiáng)國,大國;
vt. 運(yùn)轉(zhuǎn);用發(fā)動(dòng)機(jī)發(fā)動(dòng);使…有力量;
vi. 靠動(dòng)力行進(jìn);快速行進(jìn);
adj. 權(quán)力的;機(jī)械能的,電動(dòng)的;用電力(或動(dòng)力)發(fā)動(dòng)的;
??? 情景例句
Hi, I'm Mary.
嗨,你好,我叫瑪麗。
One good mother is worth a hundred schoolmasters.
一個(gè)好的母親頂?shù)蒙弦话賯€(gè)教師。
Because the equipment for adding sound to films had not yet been developed.