The tears fall
I cannot stop the tears.
with dry eyes
I can not refrain from tears.
I can not refrain from tears of sympathy―can not help crying for sympathy―can not but cry for sympathy.
to choke down one's tears―gulp down one's tears―keep back one's tears―smother one's tears―repress one's tears
もう涙が出る
I cannot stop the tears.
My tears will not stop flowing.