The lower part of its cotyledon node zone is cotyledon node zone-root transition region, and its upper part is cotyledon node zone-stem connection region.

在子叶节区下部存在子叶节区—根过渡区；子叶节区上部存在子叶节区—茎连接区。

youdao

During a UN summit in 2003 in Geneva, the subject was hotly debated, but the US refused to relinquish control of the Root Zone file, which is basically the key to governing the internet.

BBC: Technology

D-shaped holes in the bark or new tree shoots emerging at the root zone of your ash trees may be a sign of infestation by the Emerald Ash Borer, an insect native to the Far East that targets ash trees, says Dave Dailey of Birchcrest Tree and Landscape, in Rochester, N.

WSJ: Getting to the Roots of Your Trees' Stress

The euro zone recession is deepening, and t he root problem is the obvious.

FORBES: Prepare For A Stock Market Plunge