大的英文单词怎么写

这是新系统的一大弊端。

This is the one major drawback of the new system.

他们用许多难懂的.大词。

They use a lot of big words.

保健已经成为大生意。

Health and fitness have become big business.

这婚礼可是一大盛典。

The wedding was a great occasion.

他们要养活一大家人。

They have a large family to feed.

我钓的鱼有这么大呢。

The fish I caught was yay big.