contrast, conversely, contrary, instead, whereas, while, unlike

by contrast 相對地(常放句中
in contrast 相對地(常放句首
in contrast to 相對於…(插入句用法
in contrast to 相對於…(介系詞用法
by comparison 相比之下(
in comparison with 相較於
compared with 相較於
compared to 相較於
conversely 反過來說(
conversely 反過來說( converse 帶有若 a=>b 然後若 非a=>非b 的推論,如本句若 tweet而不是email則顧客不爽,反過來說,若 email而不是tweet則顧客想給建議
instead 取而代之(用來否定掉前面一句
on the contrary (正好相反,否定掉前一句後嚴正聲明
whereas 然而…卻( 極端差異用 ,avalanche 雪崩,常放句中
while/whilst 當…而… (差異沒那麼大,而 when 則是強調時間而非差異 ,常放句首
while/whilst 當…而…(差異沒那麼大,有「雖然」的味道,而 when 則是強調時間而非差異,常放句首

替代語

unlike sth 不似(此為 in contrast to 替代語

practice

while 當…而…(差異沒那麼大,有「雖然」的味道,而 when 則是強調時間而非差異,常放句首
compared with 比較
compare sth to 將…比作是

To compare to is to point out or imply resemblances between objects regarded as essentially of a different order; to compare with is mainly to point out differences between objects regarded as essentially of the same order. Thus, life has been compared to a pilgrimage, to a drama, to a battle; Congress may be compared with the British Parliament. Paris has been compared to ancient Athens; it may be compared with modern London. From https://www.dailywritingtips.com/compared-to-or-compared-with/