These Specific Stretches Can Help Alleviate Nagging Feet Pain After Pregnancy
"those / these" are determiners and are used before nouns to refer to a particular group of things / people, e.g. these people / those rules / those buildings. Update: 题主问的是What are those? 然后他.
Spenco - Feet pain after wearing high heels for long hours can lead to ...
