sinh đôi tạo thành cặp cặp song sinh 
twin like: song sinh → →
Zwillinge ☊ 
song sinh ☊ 
双胞胎 ☊ shuāng bāo tāi Zwillinge ☊ song sinh ☊ 双子座 ☊ shuāng zǐ zuò Zwillinge ☊ song sinh ☊ ☊ Zwillinge sind schnell und sehr flexibel. ☊ Song sinh thì nhanh nhẹ và linh hoạt. ☊ (Lektion 80, Nr. 1134) adjust yourself to sth: You'll quickly adjust yourself to student life. ☊ adjust ☊
amuse sb: She suggested several ideas to help Laura amuse the twins. ☊ amuse ☊
I can never tell the difference (= distinguish) between the twins ☊ difference ☊
She's the mother of twins. ☊ mother ☊
I never knew (= didn't know until now) you had a twin sister. ☊ never ☊
She's expecting twins. ☊ twin ☊
The twins are so alike I can't tell which is which. ☊ which is which ☊