difficult的反義詞的副詞

副詞形式是easily，例如：

1、This can be seen easily with the benefit of slow motion video playback.藉助於慢鏡頭的回放，可以很容易地看清楚這個過程。

2、Users can easily move files between PCs connected by local area networks or the internet.用戶可在由局域網或因特網連接的個人計算機之間很容易地傳遞檔案。

3、The situation might all too easily have become a disaster.這形勢本來是很可能成爲一場大災難的。