1 美国的自杀率在过去几年有所上升,这尤其令人担忧。
It's alarming that the suicide rate in US is rising past years.
The US has seen an alarming increase in suicide in the past few years.
It is particularly disturbing that suicide has been on the rise in America in the last few years.
It is particularly worrying that a growing number of Americans have taken their own lives over the past few years.
【如何描述数据或某种现象的上升趋势】
2. Blcu has seen an alarming decrease in the enrollment of foreign students in the past few years.
最近学校的老师一直在吐槽学校发展得越来越不行,越来越少的留学生选择来我们学校学习汉语。