If there is only one element in the list (the (CDR args_list) portion on line 2 returns nil), return the single element (the (car args_list) on line 3).
如果列表中只有一个元素(第2行中的(cdr args_list)部分返回nil)，则返回单个元素(第3行中的(car args_list))。
Nigeria won the silver medal in men's football, or soccer, losing to Argentina one-nil, in a tough match Saturday in Beijing.
尼日利亚在男子足球赛中赢得了银牌，以零比一的比分输给了阿根廷，那是星期六在北京的一场艰苦的比赛。
If you call cons on nil, Lisp treats nil as an empty list and builds a list of one element.
如果对nil调用cons,Lisp将nil作为空列表对待，并构建一个含一个元素的列表。
Finally a question I am willing to answer. The answer is zero. Zip, nil. One minus one.
终于问了一个我愿意回答的问题。答案是零。什么都没有，零蛋。一减一。
One of the biggest surprises for programmers coming from other languages is that, in Lua, only false and nil are considered false; any object of a non-boolean type is always considered true in tests.
对于习惯使用其他语言的程序员来说，Lua最令人惊讶的地方是，只有false和nil 被看作 false；任何非boolean类型的对象总是被看作true。
IsCurrentAction (slot) - Return 1 if an action is the one currently underway, nil otherwise.
如果指定动作正在进行中，返回1，否则返回空。
Beimen Area takes drug prohibition as the core, drug prevention as the key point and one 'nil 'three 'decreases 'as the goal, and pays great attention to alternative help and instruction.
北门地区以禁毒工作为核心，以毒品预防为重点，以“一无三减少”为目标，认真抓好禁吸戒毒接茬帮教工作。
Beimen Area takes drug prohibition as the core, drug prevention as the key point and one 'nil 'three 'decreases 'as the goal, and pays great attention to alternative help and instruction.
北门地区以禁毒工作为核心，以毒品预防为重点，以“一无三减少”为目标，认真抓好禁吸戒毒接茬帮教工作。
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