HSK 3
Nàge shòuruò de háizi xūyào hǎohǎo bǔchōng yíngyǎng.
That thin and weak child needs to get proper nutrition.
HSK 4
Shēngbìng zhīhòu, tā biàn de gèngjiā shòuruò le.
After his illness, he became even thinner and weaker.
HSK 5
Tā suīrán shēntǐ shòuruò, dàn yìzhì què shífēn jiānqiáng.
Although she is frail in body, her willpower is extremely strong.