| 释义 | 
		 ultra- /ʌltrə/ prefix  1  EXTREMEextremely  极(度) 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(波) → infra-Examples from the Corpusultra-• an ultramodern building• ultraviolet lightOrigin ultra- Latin ultra “beyond”, from ulter;  → ULTERIORultra- prefixChinese     Corpus extremely  |