hold up：举起；支撑；阻挡；推迟；举...为例；抢劫。
口语中What's the hold up?可表示“怎么塞车了”。

【例句】
The train was held up by heavy fog.
火车因大雾而受阻。

She was always holding up her children as paragons of good behaviour.
她总是标榜自己的孩子是品行端正的典范。