default基本解释

vi,[会计]拖欠；不履行；不到场,同近

Mortgage defaults have risen in the last year..按揭借款违约在近一年里呈上升趋势。

不履行义务英释nnfailure to do something that you are supposed to do according to the law or because it is your duty

by default,◎【体育】由于弃权而输掉；由于对方弃权而获胜.短语

真题例句...They argue that governments should persuade us into making better decisions-such as saving more in our pension plans-by changing the default options