HSK 4
辛苦
xīnkǔ形动
exhausting; hard; tough; arduous
爸爸工作一天很辛苦。
Bà ba gōng zuò yì tiān hěn xīn kǔ.
Dad works hard all day.
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 4.