In effect, it maintains a small subset of the tree.

实际上，它维护树的一个小子集。

youdao

It maintains a collection of Web pages, one per user.

它维护一个网页集合，每个用户一个网页。

youdao

It maintains continuity in the face of all these changes.

在发生变化时它必须保持它的连贯性。

youdao

Mohamed ElBaradei says inspectors need access to the site to ensure it is for peaceful purposes, as Iran maintains.

VOA: standard.2009.10.04

And a dealer--what a dealer does is it maintains an inventory of, in this case, treasury bills and then it stands ready to buy and sell.

中间商所做的是,囤积各类国库券,随时准备交易

耶鲁公开课 - 金融市场课程节选

There's a little icon of a hand here, at top left, you go ahead and click that, and what happens is, we, the staff, see a little blinking icon in the top left that says one out of two hands, one out of 10 hands, or some number of hands, and it maintains in the little row up there your placement in line.

这里有一个小的手势图标，在左上角,点击它，我们教员，在左上角就看到一个小的闪烁的图标，这说明,两个人中有一个举手，10个人中有一个举手，或很多人中有人举手，并且它处于一行之中,那里你们布置成一行了。

哈佛公开课 - 计算机科学课程节选

It maintains that controversial incidents generate debate and debate is an integral part of enjoying soccer.

WSJ: Gabriele Marcotti:The Ghost Goals That Haunt Soccer

It maintains the quintessentially democratic notion that government works for the people, not vice-versa.

FORBES: Obama Learns Newspeak: The Administration's Perversion of the Freedom of Information Act (FOIA)

It maintains that state law prevents eminent domain rights if land is used for such purposes.

FORBES: Energy Companies and Landowners are Clashing over Property Rights