我发现要兑现我的另一个竞选承诺也不容易：把白宫的工作人员的人数减少25％。
I was finding it a challenge to keep another campaign commitment: cutting the White House staff by 25 percent.
标准化的抵押贷款文件都有借款人“承诺”偿还所借款项及其利息的条款，一些人也认为，这样的承诺即使兑现起来不再容易，也还是不应该违背。
A standard mortgage-loan document reads, 'I promise to pay' the amount borrowed plus interest, and some people say that promise should remain good even if it is no longer convenient.
兑现容易挣的小利润，而持有亏损的股票。
Cashing in small, easy-to-make profits while holding the losers.
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