purpose有單數(shù)嗎……

【專家解說】：purpose
詞義為：意志；毅力；決心 時(shí)不可數(shù)
其它兩個(gè)名詞詞性時(shí)是可數(shù)名詞

詞義與例句來自《柯林斯高階英漢雙解詞典》

1. N-COUNT 意義；用途 The purpose of something is the reason for which it is made or done.
The purpose of the occasion was to raise money for medical supplies...
那次活動(dòng)是為籌集資金購買醫(yī)藥物資。
Various insurance schemes already exist for this purpose.
已經(jīng)有各種保險(xiǎn)計(jì)劃可以實(shí)現(xiàn)這一目的。
...the use of nuclear energy for military purposes...
核能在軍事上的運(yùn)用
2. N-COUNT 目標(biāo)；目的 Your purpose is the thing that you want to achieve.
They might well be prepared to do you harm in order to achieve their purpose...
為達(dá)成自己的目的，他們說不定已經(jīng)做好了傷害你的準(zhǔn)備。
His purpose was to make a profit by improving the company's performance.
他的目標(biāo)是通過提高公司的業(yè)績來實(shí)現(xiàn)盈利。
3. N-UNCOUNT 意志；毅力；決心 Purpose is the feeling of having a definite aim and of being determined to achieve it.
The teachers are enthusiastic and have a sense of purpose.
教師們很熱情并且很有決心。