1. A mother's suppression of her own feelings can cause problems. 一位母亲对她自己情感的压抑可能会导致问题。
2. Second, men's emotional inexpressiveness can cause problems in their relationships with partners and children. 第二，男性的情感表达不畅会导致他们与伴侣和孩子的关系出现问题。
3. "Only a small percentage of alien species cause problems in their new habitats," said Don Smith, professor of ecology and evolutionary biology at the University of Tennessee. 田纳西大学生态学和进化生物学教授唐·史密斯说：“只有一小部分外来物种会在新栖息地引发问题。”
4. "Only a small percentage of alien species cause problems in their new habitats,'' said Don Smith, professor of ecology and evolutionary biology at the University of Tennessee. “只有一小部分外来物种会在它们的新栖息地引发问题。”田纳西大学生态学和进化生物学教授唐·史密斯说。
5. If he chooses Mary it's bound to cause problems. 如果他选择玛丽，肯定要招来后患。
