1.The United States and Israel have officially quit UNESCO.
quit 离开;辞职
He quit his job as an office boy.
他辞去了办公室勤杂员的工作 。
2.The two countries pulled out of UNESCO at the stroke of midnight as the New Year came in.
at the stroke of 刚好在....时
Some families, especially the children, change into their new clothes at the stroke of midnight.
有些家庭,尤其是孩子们,会在午夜十二点换上新衣 。