word chain input

例句：

1. 1. She entered the room with a smile and started typing on her computer.
   她带着微笑走进房间，开始在电脑上打字。
2. 2. The teacher asked us to write down our thoughts on the whiteboard before moving on to the next topic.
   老师让我们在黑板上写下我们的想法，然后继续下一个话题。
3. 3. Students often use word chains to memorize new vocabulary.
   学生们经常使用单词链来记忆新词汇。