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abbr. 上下文无关文法；控制流图control flow graph
🗣️ 情景例句
Eight o'clock.
八点钟。
No matter what he does, don't show you mind.
不管他做什么，你总不要表现你介意。
On his arrival he was sold to a farmer and worked in the fields.
一到美国，他就被卖给了一个农场主，到地里干活。