blunder upon
讲解：blunder是动词，意思是“犯错误，乱闯，瞎闯或者是碰到某物”，短语blunder upon指的是“偶然碰上或者是无意中发现”。
支持范例：
Eg. Yesterday I blundered upon an old friend I hadn't seen for several years.
昨天我偶然碰上了一个几年没见面的老朋友。
Eg. I blundered upon an old classmate this morning.
今天早上我偶然遇到了一位老同学。
Eg. While visiting the Great Wall, they blundered upon a group of foreign friends.
他们在游览长城的时候偶然遇到了一群外国友人。
Eg. Yesterday I blundered upon an old acquaintance of mine.
昨天我偶然遇到一位老相识。
英语情景对话：
A: Is this watch yours?
这是你的手表吗？
B: No, it isn't mine. I blundered upon it under the sofa. Do youknow whose watch it is?
不，不是我的。我是在沙发下面捡到的。你知道是谁的吗？
A: Let me have a look. It's mine. I have been looking for it, but just cannot find it. It's present from my father.
让我看一看，这是我的手表，我一直在找它就是找不到。这是我父亲送给我的礼物。
B: Well, here you are. Remember to put it in a proper place.
哦，给你吧。记得把它放好。
英语学习笔记：
1.put sth in + adj. Place：把......放在......的地方
Eg. He put the gold watch in a safe place.
他把金表放在安全处。
Eg. I went and put it in a secret place by Parah, as the Lord had said to me.
我就去，照着所吩咐我的将它带藏在伯拉河边。
Eg. Just take a stone and put it in the same place.
拿块石头，放回原位。
Eg. The mice at the cheese again, put it in a safer place.
耗子又在偷吃干酪了，把它放到较安全的地方去吧。
2.have a look：看一看，看一下
Eg. I went east in May to have a look at him.
我五月到东部去拜访他。
Eg. Let me have a look at your newspaper.
让我看一看你的报纸。
Eg. Now that he'd come to the door, he thought he might as well go in with the others to have a look.
他想既然来到了门口，莫如跟着进去看看。
Eg. Please have a look and tell me your opinion.
请看一下并把你的意见告诉我。
3.look for：寻找
4.a present from sb：某人送的礼物
5.under the sofa：在沙发下面
6.a proper place：合适的地方
