open out
1．become wider，esp．of a road，river，etc．变宽；打开
At the foot of the mountain，the river suddenly opens out into a broad estuary．这条河流经山脚时突然向宽阔的港湾伸展开去。
2．develop发展；发育
In the warmth of the room，the roses opened out in a few days．在室内温暖的空气中，玫瑰几天内就开花了。
Her good qualities opened out as she grew in years．她的优秀品质随着年龄的增长而更趋完美。
3．become visible over a wider area 展现；显示
As we climbed higher，a wonder ful view opened out before us．当我们再爬高一些时，一派美好的风光展现在我们眼前。
Just over the hill the countryside began to open out，and we had our first glimpse of the sea．就在山那边我们看到了乡村的景象，而且第一次看见了那片大海。
4．become less shy or nervous in public变得不那么害羞；直言；畅谈
He's opened out a lot since he went to university．上大学后他健谈多了。
They opened out to each other．他们相互畅谈。