“不自然”造句

她对他开朗、坚定地一笑，但笑得有点不自然。
She gave him a bright, determined smile which seemed unnatural.

肉嚼不烂，酱汁黏稠，味道也不自然。
The meat was chewy and the sauce was glutinous and tasted artificial.

他的笑声好像有点不自然。
His laughter seemed a little strained.