长方体的体积=长×宽×高=3×2×6=6
故答案为：6
用所给单词的适当形式完成句子.
1. I want to be a teacher after (graduate).
2. I'll try my best to be (success).
3. What a great____ (achieve) to them.
4. They have very____ (difference) meanings.
5. The phrasal verbs are____ (use) more.
