N-COUNT An actor's or actress's understudy is the person who has learned their part in a play and can act the part if the actor or actress is ill. 替角
He was an understudy to Charlie Chaplin on a tour of the U.S.
他曾是查理•卓别林美国巡演的替角。
Silence is an important and understudied communication behavior.
沉默是重要的沟通和代替沟通的行为。
Confidentiality protection ensures that the data can't be understudied by attackers and integrity protection ensures that the data can't be tampered.
存储器的机密性保证了数据不被攻击者窃取，完整性保证了数据不被攻击者篡改。
"Clearly environmental toxicants play a role in child neurodevelopment, and phthalates, in particular, have been understudied in this area," Engel said.
“显而易见的是，环境中的有毒物质对儿童的神经发育影响很大，而邻苯二甲酸酯的危害尤其严重，”恩格尔说。
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