to fold or turn up sleeves or trousers
卷起或拉起袖子或裤子 (juǎn qǐ huò lā qǐ xiùzi huò kùzi)
"He rolled up his sleeves before starting to wash."
"他在开始洗之前卷起了袖子。" (Tā zài kāishǐ xǐ zhīqián juǎn qǐle xiùzi.)
to gain weight
to develop mental and emotional toughness
to start earning a large amount of money
to do something innovative or pioneering
to combine efforts with others for a purpose
to gradually relax or relieve tension
