You can remember the meaning of 人体 with this easy mnemonic:
The <strong>human</strong> (人) <strong>body</strong> (体) is a source of curiosity and mystery. People are interested in how limbs move and find comfort in <strong>human body</strong> contact.
Using mnemonics to remember the meaning of Chinese characters like can have an enormous impact on how long to learn Mandarin it takes.