Sentence examples for at it has from inspiring English sources

Further, in native AT, Tyr131-Asn127-Leu130-Leu140-Ser142 forms atthehelixuster at the helix D-strand 2A interface and tight interactions between Tyr131 and neighbouring hD, and s2A stabilizes the native conformation of AT; it has also been hypothesized and tested that disrupting this cluster would activate AT independently of heparin [ 43].

Though the question of how much longer he'll keep at it has reared its ugly head as of late.

As well as being pleasing to look at, it has been shaped to fulfill its intended function with a slender rim that scoops up risotto as deftly as possible.

Getting at it has always been the hard part.

But this author who sneers at it has received more than his due.

I am surprised that the IPC "brand" has lasted as long at it has.

Some kids are masters at it, having practised it very well at home.

At last, it has.

At least it has rhythm.

At times, it has not.

But at least it has begun.