用英语单词造句子写长句子那.单词是：effective有效的、required要求各写三个、很急、万分感谢.

Question

用英语单词造句子写长句子那.单词是：effective有效的、required要求各写三个、很急、万分感谢.

Answer 1

【effective】
1）The new rules will become effective in the next few days.
新规定将在几天后生效.
2）Comparative tests have proved the technique to be effective.
对比试验证明,该方法是行之有效的.
3）Sometimes such a narrow course may be effective.
有时这种狭隘的进程可能见效.
【required】
1）Why they thought you required any assistance beyond me?
为什么他们觉得你不需要我的任何援助?
2）Who can modify required steps?
谁可以修改必需步骤?
3）This clause is required for a hierarchical query.
对于分等级查询是必须的.