双拼

shuāng pīnshuangpin

1. two-item combo (usu. referring to a food dish, esp. two types of meat served with rice or noodles)
2. (real estate) duplex; semi-detached
3. (computing) double pinyin (input method in which each syllable is typed using no more than two keystrokes: one for the initial consonant and one for the final)

Study it in Yanamino