循环

tài yáng dōng shēng xī luò xún huán wǎng fù

太阳东升西落，循环往复。

The sun rises in the east and sets in the west.

zǎo shuì yǒu lì yú xuè yè xún huán

早睡有利于血液循环。

Going to bed early is good for blood circulation.

chūn qù qiū lái sì jì xún huán

春去秋来，四季循环。

The seasons cycle from spring to autumn.

xún huán yùn dòng

循环运动

circular motion