老师在家长会上再次强调了家庭作业的重要性。

The teacher ___re-asserted the importance of homework at the parent-teacher meeting.

面对质疑，教练再次强调了他的训练方法是有效的。

Facing doubts, the coach ___reasserted that his training method was effective.

公司通过发布新产品再次确立了市场主导地位。

The company ___re-asserted its market dominance by launching new products.