The strongest people 主語(yǔ)
are 謂語(yǔ)系動(dòng)詞
those who can hold a lot of things inside but act like nothing happened. 后面一個(gè)并列式的短語(yǔ)做表語(yǔ).who can hold a lot of things inside是修飾什么的The strongest people這句話是A（B）+C的句式么？but 在句中做轉(zhuǎn)折詞用，所以后面的整個(gè)短語(yǔ)屬于并列短語(yǔ)，分解成句中就是
The strongest people can hold a lot of things inside but he can act like nothing happened.
這個(gè)句子就是個(gè)主系表結(jié)構(gòu)，后面的并列短語(yǔ)作表語(yǔ)用，非A(B)+C的句式