And muscle has a very low metabolic rate when it's at rest.

并且肌肉在静止的时候代谢率很低。

youdao

But, surprisingly, Yich-eng's birth rate is slightly lower than the rest of China.

但奇怪的是，翼城县的出生率竟然略低于中国其它地区。

youdao

Monday: Rest, run easy, or cross-train at 70% of Max heart rate.

星期一：休息，轻松跑或交叉训练，70%的最大心率。

youdao

Monday: Rest, run easy, or cross-train at 70% of Max heart rate.

星期一：休息，轻松跑或交叉训练，70%的最大心率。

youdao