"双胞胎兄弟" 在英语中称为 "twin brothers"。
"Twin" 是英语中的名词，意思是 "双胞胎"，来源于拉丁语 "gemellus"，意思是 "双胞胎、对儿"。
"Brother" 是英语中的名词，意思是 "兄弟"，来源于古英语 "broðor"。
例句:
"My twin brothers were born on the same day." (我的双胞胎兄弟在同一天出生。)
"The twin brothers are identical, it's hard to tell them apart." (这对双胞胎兄弟长得一模一样，很难分辨。)
"The twin brothers are both doctors." (这对双胞胎兄弟都是医生。)