To emphasize something means to indicate that it is particularly important or true, or to draw special attention to it.
近义词stress
双语例句例： But it's also been emphasized that no major policy changes can be expected to come out of the meeting.
但是也强调过，这次会议预期不会做出重大政策改变。
例： Discuss pollution with your child, emphasizing how nice a clean street, lawn, or park looks.
请与你的孩子讨论污染问题，特别要强调一下清洁的街道、草坪或公园看上去有多美。