区别是意思不同，be sure是“确信”的意思，make sure 是“确保”的意思。用法如下：
Be sure you get your daily quota of calcium.
Make sure you back up the disk before you turn the computer off.
区别是意思不同，be sure是“确信”的意思，make sure 是“确保”的意思。用法如下：
Be sure you get your daily quota of calcium.
Make sure you back up the disk before you turn the computer off.
