Acland

There is generally little interchangeability in a football club's main suppliers, says Mr Acland.

阿克兰说：足球俱乐部的主要供应商之间基本不具备可替换性。

Acland says although the amount of food donations is still adequate, other facilities such as clinics, latrines and wells cannot continue to be built because there is no more room.

阿克兰说，尽管食物捐赠量仍然足够，但是其他设施，例如诊所，厕所，以及水井，由于没有更多的空间而无法建造。

You cannot tinker with the workforce in general terms, says Mr Acland.

阿克兰说：你一般不能调整劳动者队伍。

A later study by Dan Acland and Matthew Levy found a similar habit-forming effect among students, although, alas, the good habits often failed to survive the winter vacation.

丹阿克兰（Dan Acland）和马修利维（Matthew Levy）后来的一项研究发现，学生们也存在类似的习惯形成效应，不过遗憾的是，好习惯往往不能延续到寒假以后。