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The storm split a branch off from the main trunk.
暴风雨把一根树枝从树干上刮了下来。
《牛津词典》
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Like any highway system, the federal airways have their main trunk line.
同任何公路系统一样，联邦航空线路也有其主航线。
youdao
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Like any highway system, the federal airways have their main trunk line.
同任何公路系统一样，联邦航空线路也有其主航线。
youdao