Notional value calculation

to be of reasonable or good value for the price: Four days' car hire costs £150, which is well wo...

三， worthwhile 在句子中可單獨充當表語，其主語既可以是動詞不定式，也可以是v-ing 詞，主要意思是“某事值得花時間去做”。但它常使用it 充當形式主語。

是值得的」：It pays ( paid ) to 動詞原形; 「做…是值得的」：It is (was) worthwhile + to 動詞原形/ Ving; 「值得/ 價值…」：be wor...