in a moment
立即, 马上, 转瞬间
例句与用法：
I'll come in a moment.
我一会儿就来。
He isn't in, Please call again in a moment.
现在他不在，请等会儿再来电话。
I'll be back in a moment.
我一会儿就回来。
Please come in and wait for Jack. He'll be back in a moment.
请进来等杰克吧，他马上就会回来的。
立即
I'll come in a moment.
我马上就来.