whereas

whereas
/ˌweərˈæz; ?@ ˌhweərˈæz; hwɛr`æz/ conj
1 (esp law 尤用於法律) taking into consideration the fact that 考虑到...; 鉴於.
2 (fml 文) but in contrast; while 然而; 而
    He earns 8000 a year whereas she gets at least 20000. 他一年挣8000英镑而她至少可获20000英镑.

牛津英汉双解词典