[duàn liàn]
（体育锻炼） take exercise; have physical training
build up a strong constitution
锻炼好身体
train regularly to keep fit
经常锻炼以保持健康
pursue one's athletic exercises with zest
热心地从事体育锻炼
He had been short of exercise for a long time.
他长期缺乏锻炼。
Exercise of the mental faculties is as important as bodily excercise.
智能的锻炼同身体的运动同样重要。
steel oneself in labour
在劳动中锻炼自己
temper oneself through manual labour
劳动锻炼
be tempered in [through] the great storms
在大风大浪中经受锻炼