例句
She found it difficult to sustain the children’s interest.
她发现很难保持孩子们的兴趣。
He was incapable of sustaining close relationships with women.
他无法和女人维持亲密关系。
the policies necessary to sustain economic growth
维持经济增长必需的政策
She found it difficult to sustain the children’s interest.
她发现很难保持孩子们的兴趣。
He was incapable of sustaining close relationships with women.
他无法和女人维持亲密关系。
the policies necessary to sustain economic growth
维持经济增长必需的政策