The organic litter of another tree species might add less acid but more of something else.

另一种树种的有机凋落物可能不会添加这么多酸，但会添加较多的其他物质。

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When there is a new family member—for example, a new baby—don't forget to add him or her to the family tree.

当有了一个新的家庭成员——例如，一个新生的婴儿——不要忘记把他或她添加到家谱中。

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First, if the search does not find the page in the unstable tree, you add a new node in the unstable tree for this page.

第一，如果搜索代码没有在不稳定树中发现页面，则在不稳定树中为该页面添加一个新节点。

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To combat such ads, the Agriculture Department has approved a program that will add a 15 cent fee to each real tree sold, with the funding going toward future marketing campaigns to promote real Christmas trees.

FORBES: Why REAL Christmas Trees Are Back In Style

Obama has no chance of killing the oil and coal tax breaks, but even if he did, the next guy would probably just add them back (national security, you know) without dumping the tree-hugger stuff.

FORBES: Obama Proposes Tax 'Deform'

"From a brand perspective Foursquare is still seen as a game in the eyes of many users and this may be seen as a move to add more credibility to its brand, " said Joe Ryrie, creative strategist at the Fig Tree Network.

BBC: Foursquare and Amex join forces in UK to offer discounts