他不会说英语，这使得他在出席各种国际会议时处于不利地位。
It puts him at a disadvantage that he can't speak English when he attends international conferences.
商人在国际会议上使用英语，游客在他们出国时使用英语。
Business people use English at international conferences, and tourists speak English when they go aboard.
在国际会议上，人们总用英语交流。
In the international meetings people always communicate in English.
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