因此她對自己要求很嚴(yán)格。用英語怎么說

So she is very strict with herself.

She has high standards for herself. standards是表準(zhǔn)。 在美語里， has high standards for oneself是指對她自己的要求很高。

讓句子更清楚的話， 可以說 Because she has such high standards, she is pretty strict with herself. 句意是就是因?yàn)樗龑ψ约旱囊蠛芨撸?她對自己非常嚴(yán)格。

注： pretty在這里不是形容詞漂亮， 反而是副詞， 非常的意思。

Therefore，she's quit restricted on herself.

So she is strict with herself.