1. cube 1)立方形, 立方体, 方块;       2)立方;三次幂 Please bring me an ice cube (一块冰块)out of the fridge. The cube of 2 is 8. 23次幂是8. The cube root of 27 is 3. 27立方根是3.◇cubic立方；立方形  ◇perfect cube完全立方◇cube root立方根 ◇cube power方形火药
2. sailor 1)海员, 水手; 乘船者   The sailors landed on Dalian.   海员在大连上岸.   He had been a sailor in the USA   navy.   他曾在美国海军当水兵.   I am a bad sailor.   我是一个爱晕船人.  2)（同）seaman海员；水手
3. benefit 1) vt. “对…有利”, 后面接名词&代词, 但不接反身代词   Exercise benefit our health.   Your advice benefited me a great  ...