Polycom speaker phone: maybe two (if a large room).
带有扬声器的无线话筒：如果是大房间的话，也许需要两个。
I can still remember my first phone call with a native speaker.
我还记得我第一次跟母语是英语的人通话的情景。
Don't use a speaker phone unless absolutely necessary.
若非必要，不要使用电话的免提功能。
He is also a regular speaker at technology conferences on the subject of phone fraud.
他还经常在科技大会上就电话欺诈主题发言。
Everybody has to have a speaker phone.
人人得有个免提电话。
Can conference call phone in room doesn't have speaker phone.
可以召开电话会议房间内没有对讲电话。
Use a shoulder rest receiver, speaker phone, or headset.
使用肩部来固定收话器，扬声器电话或头戴送受话器。
Loud back speaker and in phone call.
扬声器和大声回电话。
Loud back speaker and in phone call.
扬声器和大声回电话。
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