Meaning of zhè shí:
zhè shí
这时
Adverb
at this time; at this moment
Zhè shí, wǒmen dōu juédìng qù gōngyuán sànbù.
这时,我们都决定去公园散步。
At this time, we all decided to go to the park for a walk.
Zhè shí, tā tūrán xiǎng qǐle shénme.
这时,她突然想起了什么。
At this moment, she suddenly remembered something.

