上校：在我的天然栖息地？
If Technical Statement B is true, then Natural Conclusion C is true.
如果技术声明B是真命题,那么自然结论C也是真命题.
C-P-R is designed to increase the natural ability of a person's heart and lungs.
心肺复苏术可以增强人体心脏和肺部的自然功能。
C: However, natural resources are declining.
C：但是自然资源在不断减少啊。
Boost your natural immunity with foods that are rich in Vitamin c.
的食用富含维他命c的食物，可增加自身免疫力。
Boost your natural immunity with foods that are rich in Vitamin c.
的食用富含维他命c的食物，可增加自身免疫力。
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