stay的过去式： stayed；
stay：v.停留；待；保持；继续是；暂住；逗留；
stay的过去分词： stayed
They're welcome to stay here as long as they like.
他们在这里愿意住多久就住多久。
How long a stay did you have in mind?
你原打算待多长时间？
The cat stayed well out of range of the children.
这只猫离孩子们远远的。
温馨提示：
