Sentence examples for mice becomes difficult from inspiring English sources

The potential of teratoma formation can be evaluated only after 3 weeks in syngeneic host and failure of teratoma formation in allogeneic mice becomes difficult to comparative analysis of the teratoma tissue in syngeneic and allogeneic host backgrounds.

It becomes difficult.

Gambling becomes difficult.

It becomes difficult to maintain faith.

Comparison shopping becomes difficult.

Amer becomes difficult and demanding.

Your breathing becomes difficult or painful.

Thus, prediction becomes difficult.

Then it becomes difficult for the university.

It becomes difficult to move.

Carrying it becomes difficult, especially if you are a man.