The different races were, in his view, branches of a singletree.
在他看来,不同的种族就好比一棵树上的枝杈。
2
The explanation is that each aspen while appearing to exist separately as a singletree, is in fact only the stem or shoot of a far larger organism.
对此的解释是,每一棵白杨,虽然看起来是独立存在的一棵树,但实际上只是一个巨型有机体的茎或芽。
3
To make life easier (and it is good practice anyway), we make sure that all data is reachable from the root of a singletree of data structures in memory.