Obviously, if you know which file has changed you could only copy that, but you won't always know this information.

显然，如果知道哪些文件修改过了，就可以只复制这些文件，但是不总是能够知道这一信息。

youdao

If you know which one you like best, you obviously don't need to install the other applications, however if you like choice, then of course you can install both.

如果你知道你喜欢哪个，显然你不需要安装另外一个嘛。然而如果你喜欢多选择，当然你也可以两个都装。

youdao

Obviously we're in the best position possible to avoid any risk at the start which is pole position but you never know.

杆位是最好的避免发车时任何风险的位置，但你不会知道会发生什么。

youdao