低等动物

lower animal / primitive life-form

low / beneath / to lower (one's head) / to let droop / to hang down / to incline

inferior

class / rank / grade / equal to / same as / to wait for / to await / et cetera / and so on / et al. (and other authors) / after / as soon as / once

(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

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

thing / object / matter / abbr. for physics 物理