01
忧虑的
常见词：worried
替换词：anxious, fraught
例句：
The drought has made farmers anxious about the harvest.
干旱使农民们对收成感到忧虑。
The atmosphere in the office is rather fraught.
办公室的气氛相当令人忧虑。
02
怀疑的
常见词：doubtful
替换词：skeptical, suspicious
例句：
This requirement is so sufficiently bizarre that it merits a deeply skeptical response.
这个要求太奇怪了，值得令人怀疑。
Many of the workers were suspicious of the labor agreement.
很多工人对这个劳动协议持怀疑态度。
03
有害的
常见词：harmful
替换词：destructive, ruinous
例句：
I worry about the destructive effect that violent films may have on children.
我担心暴力电影会对孩子产生破坏性影响。
The bank had capital to spare, which they lost in a series of ruinous takeovers.
这家银行在一系列毁灭性收购中损失了他们的备用资金。
04
困难的
常见词：difficult
替换词：demanding, formidable
例句：
I'm trying to learn English, and I find it very demanding.
我尝试学英语，但我发现它很有挑战性。
There were formidable obstacles to reaching an early settlement of the dispute.
尽早解决争端有着巨大的障碍。
05
无聊的
常见词：boring
替换词：dull, tedious
例句：
The lecture was dry, dull, and full of statistics.
这堂讲座枯燥无味，全是数字。
The problem is I find most forms of exercise so tedious.
问题是我发现大多数形式的锻炼都很乏味。
