off the shelf

基本解释

Manufacturers prefer to have them designed to their specifications than to buy them off the shelf.
比起货架上的商品，制造商更喜欢购买那些专门为他们制作的东西。
If you're using a pre-packaged system off the shelf, you probably won't run into very many shared library versions -- the system probably just ships with the ones it was linked against.
如果您正在使用现成的预先包装好的系统，那么您可能不会遇到太多的共享程序库版本 —— 系统可能只附带它要链接的那些共享程序库版本。
Police say that pepper spray is flying off the shelf and people are locking their doors even the daytime who never locked them before in these quiet communities.
警方说货架上的胡椒喷雾已被扫光。人们甚至在大白天把门锁上。

If you want to get some input from the user, my God I don't want to have to program it to low level zero and 1 just to get keys from the keyboard; please let there have been someone who does that for me and indeed there are an increasingly sophisticated options that you can pull off the shelf.
如果你想获得一些用户的输入数据，我的上帝,我可不希望在键盘上敲入0，1的低水平方式来编程;,希望有个人能帮我做这件事吧,但是现有的选择,也变得日益复杂了。
哈佛公开课 - 计算机科学课程节选
The pieces that we pulled off the shelf here were ultimately reduced to things like 4 loops and what we'll call functions and what we'll call abstraction; and all these fundamentals that at first glance might have some fairly RK and jargon associated with them.
我们可以把现有的课程,分为四大领域,以及应用型课程和抽象理论课程,乍一看，所有这些基础课程,都可能会和RK及与之相关的术语联系在一起。
哈佛公开课 - 计算机科学课程节选
Just so you know." Unbeknownst to the teachers, the actual test which was given to those students was a regular off-the-shelf IQ test.
只有你们知道就好“老师们不知道的是，对学生进行的测试,只是普通的现成的智商测试。
哈佛公开课 - 幸福课课程节选

Most western consumers are amateur enthusiasts like Fos, eagerly grabbing the latest miracle off the shelf.
ECONOMIST: New American fiction