required
英 [rɪ‘kwaɪəd]美 [rɪ‘kwaɪrd]- adj. 必需的；（美）必修的
- v. 需要（require的过去式及过去分词形式）；要求
英文词源
required (adj.)c. 1600, past participle adjective from require (v.). Required reading attested from 1881.双语例句
1. The demand generated by one factory required the construction of another.一家工厂产生的需求使得必须再建造一家工厂。来自柯林斯例句
2. Interest is paid monthly. Three months‘ notice is required for withdrawals.利息按月支付。提款须提前3个月通知银行。来自柯林斯例句
3. Unions are required to give seven days‘ notice of industrial action.工会组织劳工行动应提前7天作出声明。来自柯林斯例句
4. She suffered from anaemia and even required blood transfusions.她患有贫血症，甚至需要输血。来自柯林斯例句
5. It was exacting work and required all his patience.工作很艰巨，需要他有极大的耐心。