习惯用语be in the swim1.熟悉内情, 顺应潮流; 积极参加社交活动be out of the swim1.不明内情, 脱离当前形势, 不合潮流sink or swim1.不论成败; 无论如何特殊用法broken swim1.分段游effort swim1.强度游repeat swim1.反复游spinning swim1.俯仰交替游