值守

wú rén zhí shǒu de gōng yòng diàn huà

无人值守的公用电话

unguarded public telephone

bǎo ān zài chǎng qū xún chá zhí shǒu

保安在厂区巡察值守。

Security guards were patrolling the factory.

tā fā xiàn jiē dài tái wú rén zhí shǒu

他发现接待台无人值守。

He found the reception desk unattended.

jǐng fāng zuó wǎn tōng xiāo zhí shǒu cái wù

警方昨晚通宵值守财物。

Police mounted round-the-clock guards on properties last night.