nil dicit

例句：

1. 1.You will have to wait for the next train.
   你必须等下一班火车。
2. 2.She will not be able to attend the meeting tomorrow.
   她明天无法参加会议。
3. 3. He will never forget this moment in his life.
   他永远不会忘记生命中的这个时刻。