annual roll-forward root 逐年延展方式
So can we get zero percent financing for things we really need, like root canals and annual checkups?
比如说，牙齿根管治疗和年度体检。
Meanwhile, regarding the problem of coaxing plants to allocate more carbon to their root systems, Jansson says an important difference between perennial and annual plants is a good place to start.
同时，问题是可考虑哄骗植物分配更多的碳到根系，简颂指出多年生和一年生植物间的关键差异是一个良好的起动点。
Its root tuber has multilayer concentric circularity similar to "annual ring lines" at the initial stages of development, and grows and enriches at the same year.
块根在发育的初期具有类似“年轮纹路”的多层同心圆结构，当年产生，当年充实。
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