It's nothing serious ,You've just caught a bit of a cold.a bit of 能用a little吗?why?

It's nothing serious ,You've just caught a bit of a cold.a bit of 能用a little吗?why?
It's nothing serious ,You've just caught a bit of a cold.
a bit of 能用a little吗?
why?

It's nothing serious ,You've just caught a bit of a cold.a bit of 能用a little吗?why?
不能,a little用来测量地

可以
因为a little 后加名词就相当于a bit of 加上名词

不能,a little cold是"有点冷"的意思.a bit of a cold.是"有点儿感冒"的意思.

通常a bit可以等于 a little但这里不行，a little后加了名词那就形容那东西size小，而a bit是一点的意思
如果加形容词，两个词相等

a bit of a cold 是一个习惯表达，死记住就行了。意思就是有点儿感冒,没什么大不了的.就甭管其他了。

不好！有些习惯用法不能乱换

可以的