unnatural造句
She gave him a bright, determined smile which seemed
unnatural.
她对他开朗、坚定地一笑，但笑得有点不自然。
I consider activities such as jogging and weightlifting as
unnatural.
我认为像慢跑、举重这样的运动不符合自然规律。
The aircraft rose with
unnatural speed on take-off.
那架飞机以反常的速度起飞升空。