HSK 3
该
gāi动
should; ought to; probably; must be
天晚了，你该回家了。
Tiān wǎn le, nǐ gāi huí jiā le.
It is late; you should go home.
Say it
Hold the button, say it, then let go.
Other HSK words sharing a character
Also free:
New in the HSK 3.0 word list at level 3.