Word · Frequency #41690
loudhailer
扩音器；手提电子扩音器
核心释义
a battery-powered electronic megaphone used to amplify the voice when making announcements to a crowd.
喇叭筒；扬声器
用法In use
The police officer used a loudhailer to tell the crowd to move back.
用法提示：loudhailer 为名词，指便携式电子扩音器，用于放大声音向人群喊话。
We could hear the coach's instructions through his loudhailer from across the field.
用法提示：句中 loudhailer 作介词 through 的宾语，表示教练使用的扩音器。
The lifeguard picked up a loudhailer and warned swimmers about the strong current.
用法提示：loudhailer 作动词 picked up 的宾语，指救生员用来提醒游泳者的扩音器。
use a loudhailer
The coach used a loudhailer to give instructions.
教练用喇叭筒发出指令。
speak through a loudhailer
He spoke through a loudhailer to the crowd.
他通过喇叭筒向人群讲话。
announce over a loudhailer
The captain announced the news over a loudhailer.
船长通过喇叭筒宣布了消息。
常见错误Common mistakes
易错句子He loudhailed the crowd to be quiet.正确表达He used a loudhailer to tell the crowd to be quiet.
loudhailer 是名词，不能用作动词。正确的表达是使用短语 used a loudhailer。
易错句子The loudhailer in the concert hall plays music.正确表达The loudspeaker in the concert hall plays music.
loudhailer 指便携式喇叭筒，而固定安装在场所中的扬声器应使用 loudspeaker。
相关词与表达Connections
学习提示Learner notes
语法说明Grammar Note
可数名词，复数形式为loudhailers
一起学习词形Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from AI_FALLBACK, ECDICT, WIKTIONARY.