difficult的反义词的副词

副词形式是easily，例如：

1、This can be seen easily with the benefit of slow motion video playback.借助于慢镜头的回放，可以很容易地看清楚这个过程。

2、Users can easily move files between PCs connected by local area networks or the internet.用户可在由局域网或因特网连接的个人计算机之间很容易地传递文件。

3、The situation might all too easily have become a disaster.这形势本来是很可能成为一场大灾难的。