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ADV
并排，并肩（行进）
If people or things walk or move abreast, they are next to each other, side by side, and facing in the same direction.
例句
The steep pavement was too narrow for them to walk abreast.
陡坡太窄，他们没法并排走。
...a group of youths riding their motorbikes four abreast.
驾着摩托车，四个一排齐头并进的一群年轻人
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PREP-PHRASE
与…并列；与…并排
If you are abreast of someone or something, you are level with them or in line with them.
例句
As he drew abreast of the man he pretended to stumble.
当他赶上那个男人时，他装出了要跌倒的样子。
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PREP-PHRASE
了解，跟上（最新情况）
If you keep abreast of a subject, you know all the most recent facts about it.
例句
He will be keeping abreast of the news...
他将时刻关注最新消息。
We'll keep you abreast of developments.
我们会随时告知你最新进展。