1
circulatory system (blood, lymph, etc.)
1
system
システムのこの予測されなかった機能不全は不適切な配線系統によって引き起こされた。
This unexpected malfunctioning of the system was caused by improper wiring.
2
lineage;ancestry;family line
3
group (e.g. of colors) (colours);family (e.g. of languages);party;school (of thought)
4
close (evolutionary) relationship
5
a population sharing a common ancestor (in genetics);strain (e.g. bacterial)