worthwhile/ˌwɜːθ'waɪl $ ˌwɜːrθ-/

a. useful or enjoyable and worth the time, money or effort that is spent on it

a. 值得的：Our trip to Huangshan is worthwhile. 我们到黄山的旅游是值得的。

◇[It is worthwhile to do sth] It's worthwhile to make some preparations. 做一些准备是很值得的。

◇[It is worthwhile doing sth] It wasn't worthwhile doing the exercise again. 把这个练习再做一遍是没有必要的。

构词worth + while

辨析worth; worthwhile; worthy