1·She gave him a bright, determined smile which seemed unnatural.
她给了他一个快乐、坚定、看似不自然的微笑。
—— 《柯林斯英汉双解大词典》
2·Too much make-up looks unnatural.
上装过于浓艳看上去不自然。
—— 《新英汉大辞典》
3·You know, any picture of a person who poses for the camera would look dull and unnatural.
你知道，任何在镜头前摆姿势的照片都会看起来既呆板又不自然。
4·And there are other unnatural signs.
还有其他不自然的迹象。
5·Perhaps humans have simply entered a new stage of evolution in which we have abandoned chocolates, door holding, flowers or any overt gesture of interest for a new and unnatural order of things.
1·How did we ever invent "unnatural" numbers in the first place?
我们最初是如何发明“非自然”数字的呢？
2·There is, I think, much truth in Patricia's observation that "lecturing is an unnatural act, an act for which God did not design humans".
帕特里夏说“讲课是一种非自然的行为，这种行为不是上帝设计给人类的”，我认为她的观察很有道理。
3·Countless species have disappeared due to over-hunting, habitat destruction and habitat fragmentation, pollution and other unnatural human causes.
由于过度捕猎、栖息地破坏和破碎化、污染和其他非自然的人为原因，无数物种已经消失。
4·What I am stressing here is to find time in your life to be without noise. Put yourself in a position that does not allow unnatural outside forces to negatively affect your life.