This new software maintains upward compatibility with the old version.

This area is affected by multiple contamination.

Could you tell me your individual number?

He wrote an ancient poem using the literary language form.

We combined our efforts to create a collaborative doujin.

He lives by the moral code of the Three Bonds and Five Constant Virtues.

I got her mobile number.

May I give you my mobile phone number?

My umbrella was completely useless in the sudden guerrilla rainstorm.

My friend's parents are very kind.