I began to walk slower and slower.

我开始走得越来越慢。

《柯林斯英汉双解大词典》

I walk slower than most people.

我走路比一般人慢。

youdao

If we walk slower than the others we shall lag behind them.

如果我们比其他人走得慢，我们就会落在他们后面。

youdao

If we walk slower than the others we shall lag behind them.

如果我们比其他人走得慢，我们就会落在他们后面。

youdao