Relative pronouns and adverbs introduce attributive clauses.关系代词和关系副词引导定语从句.Some English adverbs function as adjectives.有些英语形容词起副词作用.Many adverbs terminate in - ly.许多副词以“ly” 结尾....
The timing of the gun was precisely synchronized with the turning of the plane's propeller.风门的调速与飞机螺旋桨的转动精确同步。The synchronized low - frequency rectifier is similar to a push - pull rectifier.同步 低频 整流器与推挽整流器相似.The vo...