thorny Eurasian shrub of small tree having dense clusters of white to scarlet flowers followed by deep red berries; established as an escape in eastern North America
whitethorn的用法和樣例：
例句
用作名詞 (n.)
Unless I walk outside these whitethorn hedges. 除非我能走出這白山楂的籬笆。
Unless I walk outside these whitethorn hedges. 除非我能走出這白山楂的籬笆。
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