n.收益差；范围( spread的名词复数 )；连续的一段时间；v.伸开( spread的第三人称单数 )；展开；（使）传播；（使）散布 双语释义：v.(动词)vt. & vi. 伸开,展开,摊开 become widervt. & vi. 传播,散布 (cause to) become widely knownn.(名词)[S] 传播,蔓延 the act or action of spreading[C] 幅度,范围 a range or area over which sth spreads[U]