n. (Trad=箭, Pinyin=jian4) arrow

n. (Simp=箭, Pinyin=jian4) arrow

yi2 jian4 shuang1 diao1
Shooting two hawks with one arrow.
Getting two separate results in one go. Killing two birds with one stone. Compare with 一举两得 (yi4 ju3 liang3 de2) and 百发百中 (bai3 fa1 bai3 zhong4).

guang1 yin1 si4 jian4, ri4 yue4 ru2 suo1
Moon shining like an arrow, days and months seeming like shuttles.
Time flies!