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》

In a CVS repository, for example, a stream maps to the main trunk HEAD or to a branch.

例如，在CVS资源库中，一条流可以对应为干线HEAD，也可以对应为分支。

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Later, moving changes from one branch to another branch (or the main trunk) is performed by the merging operation.

稍后，由合并操作将更改从一个分支迁移到另一个分支(或主干)。

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The main trunk had been scarred by claw marks up to a height of five feet.

BBC: 'Beast of Bodmin' sighted at Trewithen Gardens

He was in Dumfries to unveil a number of transport initiatives and meet campaigners seeking action to upgrade the region's main trunk roads.

BBC: NEWS | UK | Scotland | Minister hears opinions on routes

The main M1 motorway runs west from Belfast as far as Dungannon and there are dual carriageway trunk roads to Londonderry and the Irish border.

BBC: Northern Ireland facts and figures