Narrow band amplifier
[计] 窄带放大器
🧩 词语组成解析
narrow
['næro]
adj. 狭隘的;狭窄的;（种类或数目）有限的;仔细的，精确的;
vt. 限制，限定;（使）变窄;变得更窄;收缩;
n. 海峡;狭路，隘路;狭窄的水道;
vi. 变窄;
band
[bænd]
n. 带;乐队;衣带;价值;
vt. 给…镶边;用带绑扎;（将价格、收入等）划分档次;把…联合起来;
vt.& vi. 结合起来，伙同;
vi. 聚集，联合（起来）（通常与together 连用）;
band(to bind)→皮带；带子；条纹；乐队
🗣️ 情景例句
All you do is
你所要做的就是
None but a wise man can employ leisure well.
唯智者善于利用空闲。
It seems she was in class on Friday afternoon, but no one has seen her since.
好象她星期五还在教室，但从那以后没人看见过她。