deciduous /dɪˈsɪʤəwəs/ adjective Learner's definition of DECIDUOUS
of a tree, bush, etc.
: having leaves that fall off every year(树、灌木等)落叶的 -
the bare branches of a deciduous tree in winter冬季落叶树的秃枝
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the region's deciduous forests [=forests that are made up of deciduous trees]这个地区的落叶林
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deciduous and coniferous trees/forests落叶/针叶林