请问before在这里是什么意思?When Morse finally completed his telegraphic instrument, he went before Congress to show that it worked.He sent a message over a wire from Washington to Baltimore. 当摩斯最终完成了他的电报装置,他在

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请问before在这里是什么意思?When Morse finally completed his telegraphic instrument, he went before Congress to show that it worked.He sent a message over a wire from Washington to Baltimore. 当摩斯最终完成了他的电报装置,他在

请问before在这里是什么意思?When Morse finally completed his telegraphic instrument, he went before Congress to show that it worked.He sent a message over a wire from Washington to Baltimore. 当摩斯最终完成了他的电报装置,他在
请问before在这里是什么意思?
When Morse finally completed his telegraphic instrument, he went before Congress to show that it worked.He sent a message over a wire from Washington to Baltimore.
当摩斯最终完成了他的电报装置,他在国会进行了展示.他从华盛顿通过电缆发了一条消息到巴尔的摩.
he went before Congress to show that it worked.
请问before在这里是什么意思,起了什么作用?

请问before在这里是什么意思?When Morse finally completed his telegraphic instrument, he went before Congress to show that it worked.He sent a message over a wire from Washington to Baltimore. 当摩斯最终完成了他的电报装置,他在
这里的before应该是 in front of的意思
he went before Congress to show that it worked.
他在国会议员们面前进行了展示.

介词,解释为：在...前面;在...面前
本题是在国会前的意思。
例如：
She said she had never spoken before an audience.她说她从未在大庭广众讲演过。

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