@eeeeeeve 可以啊

```
bower install bootstrap --save
bower install bootstrap-v2=bootstrap#2.3.2 --save
bower list
bower check-new Checking for new versions of the project dependencies..
demo#0.0.0 D:\demo
├─┬ bootstrap#3.3.4
│ └── jquery#2.0.3 (2.1.3 available)
└─┬ bootstrap-v2#2.3.2 (latest is 3.3.4)
└── jquery#2.0.3 (latest is 2.1.3)

```

bower.json
```
"dependencies": {
"bootstrap": "~3.3.4",
"bootstrap-v2": "bootstrap#2.3.2"
}
```

不过3.3.4可以用2.1.3的jquery，你也可以再取个名字把jquery也放2个...