Wait for the other shoe to drop直译等另一只鞋子掉下来，引申为等待最后的（坏）结果；提心吊胆地等待最后的结果。

【例句】
Business is bad so the firm has to fire 200 employees. They' ve already announced the first 100, and now the rest of us are waiting for the other shoe to drop.
业务不景气，所以公司不得不辞退200名雇员。他们已经宣布了100名解雇人员的名单，目前我们留下来的这些人都在提心吊胆地等待最后结果。

Haif of us have already known our school reports,and now the rest of us are waiting for the other shoe to drop.
我们中已经有一半的人知道自己的成绩了，剩下的人正提心吊胆地等待最终结果。