certain的副詞

副詞形式是certainly，例如：

1、I can certainly feel the effects of too many late nights.我當然能感受到熬夜太多產生的影響。

2、Beating the world champions is certainly a big ask for the team.這個隊要打敗世界冠軍當然難度很大。

3、Certainly， the early years are crucial to a child's development.毫無疑問，幼年對兒童的成長至關重要。

副詞: certainly

adv. 當然行（用於回答）必定She certainly knows what's what.

她當然知道輕重緩急。

I'm certainly not scared of him.

我當然不怕他。

The story is almost certainly false.

這個故事幾乎肯定是虛構的。

I'm certainly never going there again.

我肯定不會再去那裏了。