HSK 7-9
吃力
chīlì形
to entail strenuous effort; to toil at a task; strenuous; laborious
老人独自搬箱子十分吃力。
Lǎo rén dú zì bān xiāng zi shí fēn chī lì.
The elderly person finds moving the box alone strenuous.
Say it
Hold the button, say it, then let go.
Other HSK words sharing a character
Also free:
Appears across levels (7-9) in the HSK 3.0 word list.