這是我用英文怎麼表達？?

這是我所能幫忙做的最起碼的事。

It's the least I can do to help.

這是我第五次去美國了。

It's the fifth time that I've been to America.

這是我國歷史上的一個新紀元。

It was a new era in the history of our country.

這是我姑姑，她是從加拿大過來的`。

This is my aunt who's over from Canada.

這是我心目中完美的家庭住宅。

It's my ideal of what a family home should be.

這是我所遇到的最好的事。

It's the best thing that has ever happened to me.

這是我確實要走的唯一理由。

That's the only reason I'm actually going.

這是我認為最值得推薦的光碟的清單。

Here's a list of my top CD recommendations.