By the 1990's, less than half of the earth's original rain forests remained, and they continued to disappear at an alarming rate every year.(到20世纪90年代，地球上原有的雨林只剩下不到一半，而且它们每年都继续以惊人的速度消失。)
There was no time to launch the lifeboats because the ferry capsized with such alarming speed.(因为渡船倾斜的速度如此之快，根本没有时间把救生艇放下水。)
The situation was alarming.(当时处境危急。)
We've gone over where coral reefs are usually formed—along the edges of shallow ocean banks in tropical or subtropical regions, and the fact that they are declining at an alarming rate.(我们已经对珊瑚礁通常是在哪里形成的问题进行了讨论，它们是在热带或亚热带地区沿着浅海海岸的边缘形成的，而它们的数量正在以惊人的速度减少。)
By 1965, when the drought situation turned alarming, the Government took the lead and allowed wheat revolution to move forward.(到了1965年，当干旱形势变得令人担忧时，政府带头使小麦革命向前推进。)
The fact that there is an iced coffee on the market with over a quarter of a woman's daily calories allowance is alarming.(市场上有一种冰咖啡，其热量超过女性每日卡路里摄入量的四分之一，这一事实令人担忧。)
Even using a "hands-free" device can divert a driver's attention to an alarming extent.(即使使用“免提”设备，也会在令人担忧的程度上转移司机的注意力。)
Peter's hair stood up on end at this alarming thought.(一想到这个可怕的念头，彼得吓得头发都竖了起来。)
The rainforests are disappearing at an alarming rate.(雨林正以惊人的速度消失。)
The disease is spreading with alarming rapidity.(这种疾病正在以令人吃惊的速度蔓延。)
