WS

例句：

1. 1. I need to find out more about the history of this place before we can plan our trip.
   在我们计划旅行之前，我需要更多地了解这个地方的历史。
2. 2. The dictionary is a great resource for learning new words and phrases.
   这本词典是学习新词汇和短语的好资源。
3. 3. She spent hours researching the meanings of unfamiliar words in her textbook.
   她在课本中花了几个小时研究不熟悉单词的意思。