Pinyin: tǐ cāo
Meaning：Gymnastics
Sentence：体操运动员在双杠上摆动身子。The gymnast swung on the parallel bars.

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体：

Pinyin: tǐ, tī
Meaning: Style; system; body; form
Radical: 亻
Stokes: 7
Traditional: 體
Common words/Phrase:
体育 [tǐ yù] 【physical training】
体验 [tǐ yàn] 【to experience for oneself】
体系 [tǐ xì] 【system】
体现 [tǐ xiàn] 【to embody】
体积 [tǐ jī] 【volume】

操：

Pinyin: cāo
Meaning: To drill; to exercise
Radical: 扌
Stokes: 16
Traditional: 操
Common words/Phrase:
操作 [cāo zuò] 【to operate】
操纵 [cāo zòng] 【to control】
操场 [cāo chǎng] 【playground】
操心 [cāo xīn] 【to worry about】
操守 [cāo shǒu] 【personal integrity】