free-riding

基本解释

One party must be free-riding directly on another's expenditure, and the two must be in direct competition.
一方必须是直接搭乘另一方花费的便车，并且双方须是直接竞争关系。
The upshot is that people will voluntarily contribute too little from a social perspective, by free-riding on the contributions of others.
这样，从社会角度看，因为搭便车问题的存在，人们自愿捐赠的太少了。
Worse still, there isn't the slightest reason to suppose that free-riding exhausts the kinds of exceptions to natural selection that endogenous structures can produce.
更糟的是，没有丝毫的理由认为搭便车可以穷尽所有自然选择的反例（内在结构产生的）。

Klug was on the transplant waiting list for six years, and during that time he was out care-free, riding his snowboard, playing and training hard.

Ratings would have to be confidential to prevent investors from free-riding on each other.
FORBES: Rethinking Credit Ratings
As in law firms, what looks like irrational behaviour may in fact be a community norm which efficiently discourages free-riding.
ECONOMIST: Letters The