Spread spectrum
[计] 扩频
🧩 词语组成解析
spread
[sprɛd]
vt.& vi. 伸开;展开;（使）传播;（使）散布;
n. 范围;连续的一段时间;
vt. 涂;把…覆盖在…上(over);把…敲平;散发（气、烟等）;
vi. （景色、景致）展现;传开;（人群）散开;软化;
adj. 张开的;[语言学]双唇展开的;（宝石）扁薄发光的;（文章、照片等）跨两栏（或多栏）的;
🗣️ 情景例句
Richard, isn't that too much to ask of your mother?
Richard，那是不是太麻烦你母亲啦？
Has this seat number started boarding?
这个座位号已开始登机了吗？
It starts at four thirty, doesn't it?
聚会4：30开始，是吧？