pre-existent adj.先在的pre-existence (n.) pre-exist illustration [心理學]預置插圖pre-exist (v.) pre-exist (=preexist) vi.vt.先存在； 先于 ... 而存在pre-established allowable deviation [能源科學技術]預定允許偏差[教育學]預定允許偏差pre-establish vt.預先設定pre-eruptive adj.搶先的; 先發(fā)制人的pre-enrichment 預富集pre-engagement ring pre-engage (v.) pre-emptory (adj.) pre-emptive treatment [醫(yī)藥科學]先驅性治療pre-emptive right 優(yōu)先權 [金融] 優(yōu)先認購權pre-emptive bid [經濟學]優(yōu)先出價權pre-emptive (adj.) pre-emptive adj.優(yōu)先購買的；先發(fā)制人的pre-emption rights 優(yōu)先購買權pre-emption right pre-emption (n.)