1.convict 证明...有罪
In 1977 he was convicted of murder and sentenced to life imprisonment
1977年，他被判谋杀罪名成立，判处终身监禁。
2.commit 犯罪
I have never committed any crime
我从来没犯过罪。
3.be crucial to 对...至关重要
A growing economy and a focus on essential priorities will also be crucial to the future of Social Security.
经济发展和重点集中也对社会福利保险的未来至关重要
4.crudely 粗糙地；大致地
Put crudely, the liberationists favour extending a number of rights to children.
大致来说，妇女解放论者希望将一些权利延伸至儿童。
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