每辆自行车都会贴上一个小型电子标签，当自行车被推入“自行车树”的车辙内后，一个传感器会记录下车主的详细信息。

Bikes are fitted with a small electronic tag. When the bike is placed into the ruts of the bike tree machine, a sensor logs the owner's details.

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小型程序会使用系统树或者用户树，但是不会同时使用这两者。

Smaller programs will use either the system tree or the user tree, but not both.

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一株植物或是一棵树就是一座小型的药物工厂。

A plant or tree is a small medicine factory.

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