1. 该书受版权保护。

[ gāi shū shòu bǎn quán bǎo hù 。 ]

The book is protected by copyright.

2. 宪法保护人民的自由。

[ xiàn fǎ bǎo hù rén mín de zì yóu 。 ]

The constitution guards the liberty of the people.

3. 护士在手术室协助医生动手术。

[ hù shì zài shǒu shù shì xié zhù yī shēng dòng shǒu shù 。 ]

The nurse assisted the doctor in the operating room.