to keep the body healthy and fit
保持身体健康和保持身材 (bǎochí shēntǐ jiànkāng hé bǎochí shēncái)
"He exercises every day to stay in shape."
"他每天锻炼,以保持健康的身体。" (Tā měitiān duànliàn, yǐ bǎochí jiànkāng de shēntǐ)
to encourage or accelerate economic development
to save or hold funds for future use or emergencies
to develop understanding by analyzing past experiences
to increase one’s effort or commitment to something
to get excited discussing a favorite specialized topic
when rain or snow falls heavily