长揖

長揖
chángyī
to bow deeply, starting upright with arms straight out in front, one hand cupped in the other, then moving the hands down to one's knees as one bows, keeping the arms straight (a form of greeting)

CEDICT

拱手高举，自上而下的相见礼。

重編國語辭典

Entry Composition

1 长 cháng
  1. long
  2. (bound form) length
  3. (bound form) strong point; forte
  4. (bound form) to be good at
  5. (literary) surplus; spare (Taiwan pr. zhàng)
2 揖 yī to greet by raising clasped hands