使他随时了解情况
keep him up to date on the situation
随时进行检查
carry out checks at any time
随时准备着
always be prepared
要随时准备着，可能有紧急任务。
Always be prepared in case there is an urgent mission.
随时都会有新的问题出现
new problems may appear at any time
看天上的乌云，随时要下大雨。
From the look of those black clouds it could start raining at any time.
他随时都可能来。
He could come at any time.
必须准备随时迎击敌人的袭击
must be prepared to meet the enemy assault at all times