無脊椎動物

invertebrate

not to have / no / none / not / to lack / un- / -less

(bound form) spine; backbone / (bound form) ridge

invertebrate

vertebra / backbone

a hammer

spine

(of sth) to move / to set in movement / to displace / to touch / to make use of / to stir (emotions) / to alter / abbr. for 動詞|动词[dong4 ci2], verb

vertebrate

animal / CL:隻|只[zhi1],群[qun2],個|个[ge4]

thing / object / matter / abbr. for physics 物理