usually ⇒ 她素来很安静。 Tā sùlái hěn ānjìng. → She's usually very quiet. ⇒ 他俩素来不和。 Tā liǎ sùlái bùhé. → Those two never get on.
素质
character
素雅
elegant
素食
vegetarian food
素餐
vegetarian meal
色素
pigment
要素
key element
音素
phoneme
素食者
vegetarian
维生素
vitamin
微量元素
trace element
我行我素
do things one's own way ⇒ 她向来我行我素,不会因别人改变自己。 Tā xiànglái wǒ xíng wǒ sù, bù huì yīn biérén gǎibiàn zìjǐ. → She always does things her own way and doesn't change for anyone.
素昧平生
never met ⇒ 一位素昧平生的女孩子给她买了火车票。 Yī wèi sù mèi píngshēng de nǚháizi gěi tā mǎile huǒchēpiào. → A girl she had never met before bought her a train ticket.