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n.河段；流域；（上、中或下）游，（外）围；（远）处，（组织或机构中的）层级...
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When water reaches the saturated zone beneath the water table , it oozes slowly downward, and laterally.当水到达潜水面以下的饱和带时, 它就缓慢地向下和侧向渗透.Traffic reaches a peak between 8 and 9 in the morning.早晨八九点钟是交通的高峰时刻。When the temperatu...
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A girl may fill out before she reaches her full height.女孩子在长足个头之前可能会发胖。His face collapses when the baby preferen-tially reaches for the mother.当这个婴儿最先把手伸向母亲时，他脸色一沉。His secretary acts as a gatekeeper, reading all mail bef...