whereas
/hweərˈæz/conjunction
1- in contrast or comparison with the fact that而, 却; 反之：
you treat the matter lightly, whereas I myself was never more serious.
你把此事看得很轻, 而我自己却过于认真。
1.1
- (especially in legal preambles) taking into consideration the fact that（尤用在法律文献中）鉴于。