keep/lose track of sb/sthto have/not have information about what is happening or where sb/sth is了解╱不了解…的动态;与…保持╱失去联系Bank statements help you keep track of where your money is going.银行账单有助于你了解你的资金使用情况。I lost all track of time(= forgot what time it was).我完全忘了时间。 |