小男孩羞怯地走上前去握了握利奥的手。The little boy stepped forward timidly and shook Leo's hand.他在表达自己的想法时毫不羞怯。When it comes to expressing himself he is no shrinking violet.她小时候是个羞怯的丑小鸭。She was a shy, ugly duckling of a child....
These are more commonly described as the'labile'metal concentrations.这些通常称之为 “ 不稳定 ” 金属浓度.Such physical entanglements are usually labile.这种物理缠结往往是不稳定的.Have proved to protect from degradation labile molecules su...