be worth的用法和样例：
例句
- An emerald of that size, unflawed, would be worth a king's ransom.
一块那么大、而又无瑕疵的绿宝石会是价值连城的。 - That painting must be worth a king's ransom.
那幅画一定价值连城。 - If anyone grasses on us, his life won't be worth living!
谁要是出卖我们，他就别想活了！ - Sufficiently valuable or important to be worth one's time, effort, or interest.
值得的非常有用的或重要的而值得耗费时间、投入力量或引发兴趣的
