alarming

alarming: making you feel worried or frightened , 令人担忧的，使人惊慌的，同义词有worrying, disturbing

1.It's alarming/worrying/disturbing that…

It is alarming that students spend so much time learning without actually learning something.

2.at an alarming rate/speed

The Chinese sturgeon is disappearing at an alarming rate.

The Amazon rainforest is disappearing at an alarming rate.

3.alarmingly

Even by the standards of poor countries, India is alarmingly--and unnecessarily--filthy. It needs to clean up.

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filthy: dirty/ unclean

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Domestic violence is alarmingly widespread in Turkey.

1.翻译：

美国的自杀率在过去几年有所上升，这尤其令人担忧。

It's particularly alarming that the suicide rate in the U.S.  has risen  for the past few years.

（参考翻译：The US has seen an alarming increase in suicide in the past few years. 或 It is particularly disturbing that suicide has been on the rise in America in the last few years. 或 It is particularly worrying that a growing number of Americans have taken their own lives over the past few years.）

2. 造句

Data shared by parents about children is collected at an alarming rate , potential dangers for children no longer just entail speeding cars and strangers with candy.

In the report, Longfield argues that parents are exposing their children's data at an alarming rate.