You've probably heard the terms "pull technology" and "push technology.

你可能听说过两个术语：推技术（push technology）与拉技术（pull technology）。

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The online travel website has seen better quarters, with higher taxes, increased spending on technology and content, and a push and pull between airlines and global distribution systems that took a toll in the last quarter of 2010.

FORBES: EPS Miss Blamed For Sharp Fall In Expedia Shares