There is a default member Type that can be used to create members.

已经有一个默认的成员类型，可用来创建成员。

youdao

Any type can have a default member, which is a member that is invoked when no member name is given.

任何类型都可以具有默认成员，即在未给定任何成员名称时调用的成员。

youdao

When merging two dimensions, you might have a situation where each dimension has a different default member.

在合并两个维度时，可能出现每个维度有一个不同的默认成员的情况。

youdao

Moving derivatives trades to clearing-houses mitigates the effect of a default of a clearing member (Lehman Brothers' cleared trades were handled smoothly in 2008, for example).

ECONOMIST: The risk in clearing-houses

The recurring fears of sovereign debt default by various EU member countries is making the U.S., even with all its political dysfunctionality, look better than it otherwise would.

FORBES: S&P U.S. Debt Downgrade: Implications For Commercial Real Estate

It was the first time euro-zone leaders accepted that a member could default and leave the euro. (And once the unthinkable is possible, why stop at Greece?) It was also the first time leaders intruded so deliberately into the internal politics of other countries.

ECONOMIST: Charlemagne