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ultra-

Word family
ultra- /ʌltrə/ prefix  
1 EXTREMEextremely ()
 an ultra-modern building
极现代的建筑
 He remained ultra-cautious.
他一向极其谨慎。
 an ultra-light jacket
极轻的夹克
2 technicalABOVE above and beyond something in a range 外;超
 ultrasound (=sound that is too high for humans to hear)
超声()
infra-
Examples from the Corpus
Origin ultra-
Latin ultra beyond, from ulter; → ULTERIOR
ultra- prefix
Chinese
Corpus
ultra-

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