problem of training的用法和樣例：
例句
- Winter damage is often a problem except on Long Island, where the variety is successfully cultured.
冬天損害緊湊，往往是除了在長島，那裡的品種是成功的培養問題。 - Starting from studies on the psychological structure of subjectivity in schoolboys and schoolgirls, this paper probes into the problem of subjectivity in education.
本文從研究人的主體性的心理結構出發，探索了教育中學生的主體性的培養問題。
