refrained

n.the part of a song where a soloist is joined by a group of singers

同义词：chorus

v.

resist doing something

"He refrained from hitting him back"

同义词：forbear

choose not to consume

同义词：abstaindesist

Adaptive proportional routing:a localized QoS routing approach
Quiet periods for detecting wireless devices
INTERACTIVE WAGERING SYSTEMS FOR PROVIDING WAGERING INFORMATION AND METHODS OF USE
Child Adjustment and Parent Use of the Term
Regulating redox balance gene expression in healthy individuals by nutraceuticals: a pilot study.
In smoke's way: Socioemotional reactions to another's smoking.
Financial Ratios and the Probabilistic Prediction of Bankruptcy
The Fair Wage-Effort Hypothesis and Unemployment
Behavioral antecedents of peer social status.
Development of Concern for Others.