Cons (which stands for construct) takes two arguments, the node data and the list that the bottom half of the pair will point to.

cons(代表construct)获得两个参数，即节点数据以及pair的下半部分将要指向的列表。

youdao

Scheme defines a list as being either the null list or a pair whose bottom half is a list.

Scheme将一个列表定义为一个空列表，或者是一个下半部分为某个列表的pair。

youdao

They are slightly different from the node structures I showed you in c, above, because the bottom half of a pair doesn't have to be a pointer to a list node.

它们与前面我向您介绍的c中的节点结构稍有不同，因为一个pair的下半部分不必是一个指向某个列表节点的指针。

youdao

In retrospect, the reductions were too large, making it too difficult to fight and win a pair of nearly simultaneous conflicts, as envisioned in the Bottom-Up Review.

CENTERFORSECURITYPOLICY: Center for Security Policy | Christopher-Perry Join The Debate On Missile Defense: Will The House Defend Clinton��s Program �� Or Defend America?

The bottom board is home to four AA batteries (NiMH), a pair of motors and wheels, a power connector and switch plus some infrared sensors.

ENGADGET

An active palm rest rounds out the modules, with a thumb-wheel and additional action button -- it's joined by a pair of (yet again) adjustable wrist rests that anchor along the bottom edge.

ENGADGET: Mad Catz S.T.R.I.K.E. 7 gaming keyboard announced at Gamescom (hands-on)