Then we have " ree" , an r sound and a high e.

然后“ree”，一个/r/音和一个高/e/音。

What happens to your REE — this is this middle line here, that's the resting energy expenditure.

REE 水平会如何变化呢——条中间的线，静息能。

So don't make that REE. Refer, refer, but re re re refer, refer.

所以不要做那个REE。参考，参考，但重新参考，参考。

And if this is too hard, just try to make the " ree" sound without the ending.

如果太难了， 试着发出没有结尾的“ree” 声。

So this is saying: " dee" and " ree" ; the " d" sound and the " r" sound.

所以说：“dee” 和“ree” ； “d” 音和“r” 音。