那时候

那时 nàshí HSK 2 #891

at that time / back then

这时候 zhèshíhou HSK 2 #5,372

at this time / at this moment

小时候 xiǎoshíhou HSK 2 #2,274

in one's childhood / when one was young

时候 shíhou HSK 1 #82

time / moment / period

有时候 yǒushíhou HSK 1 #1,189

sometimes

那会儿 nàhuìr HSK 2 #7,179

at that time

随时 suíshí HSK 2 #1,387

at any time / whenever

同时 tóngshí HSK 2 #966

at the same time / simultaneously / moreover

当时 dāngshí HSK 2 #483

at that time / then

那样 nàyàng HSK 2 #227

that kind / like that