Meaning of xuán zhuǎn:
旋转
to rotate; to revolve; to spin; to whirl
Dìqiú bùduàn de zài zìzhóu shàng xuánzhuǎn.
地球不断地在自轴上旋转。
The Earth continuously rotates on its axis.
Dìqiú bù tíng de wéirào zhóuxīn xuánzhuǎn.
地球不停地围绕轴心旋转。
The Earth continuously revolves around its axis.
Dìqiú měitiān dōu zài zì zhóu shàng bù tíng de xuánzhuǎn.
地球每天都在自轴上不停地旋转。
The Earth spins continuously on its axis every day.
Dìqiú měitiān zì xī xiàng dōng xuánzhuǎn.
地球每天自西向东旋转。
The Earth rotates from west to east every day.