形容词
中文翻译：被束缚的
同义词：
['bound', 'constrained', 'bounded', 'restricted例句：1. The letter-bound writer must submit their work by a specific date.（受信件约束的作家必须在特定日期提交他们的工作。）2. The prisoner was letter-bound to the wall.（这个囚犯被绑在墙上。）3. The team is letter-bound to win the championship.（这支团队被限制要赢得冠军。）']
例句：
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1. The letter-bound writer must submit their work by a specific date.
受信件约束的作家必须在特定日期提交他们的工作。
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2. The prisoner was letter-bound to the wall.
这个囚犯被绑在墙上。
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3. The team is letter-bound to win the championship.
这支团队被限制要赢得冠军。