1. down with：达到，拿下
She is down with la grippe and so is her cook.
He is down with the flu, and therefore can not come to the party.
2. have one’s eye on
Neil’s had his eye on those shoes for a while. We should buy them for his birthday.
I've got my eye on a really nice sofa - I just hope we can afford it.
You should be careful; I think Danni has got her eye on your boyfriend.
How’s your diet going? You: have had your eye on the cake display all lunchtime!
Mark has his eye on the captaincy of the basketball team.
Ever since we got to this party, that man’s had his eye on you.
3. set sb. up with sb.：撮合某人和某人在一起，给某人介绍对象
It is so much to set your girlfriend to another guy.
I will trying to set your daughter up with the rich.