A. 英语表达 语法 Always step out of your comfort zone这句话表达有什么问题吗
很漂亮的句子啊，语法完全没有问题，就是个祈使句。
B. 这句英语是什么语法
其实，你把 but 去掉也不抄会影响全句的意思：
Abe has said he will largely stand by Tokyo’s previous apologies amid growing anger in China and South Korea over the “comfort women” system......
but 用在这里只是强调转折。介词短语 amid ......作句子的状语。
C. 请问这一段英语有语法上的错误么She laughed sometimes feel comfort
有。但主要还是英语习惯表达思维方面的问题。你唯一能做的就是多读、多听。这一专段显然是表述你对《属蒙娜丽莎》的理解，可用一般现在时：
She smiles. She sometimes seems comfortable and gentle, sometimes serious and a little sad, and sometimes derisive. Her smile was mainly manifested in the eyes and mouth, reflecting da Vinci's choise to include these parts painted looming. There is no clear boundary that makes this painting known as one with an elusively "mysterious smile."