How do you pronounce 叩關?

Q: How do you pronounce 叩關? A: kau3 gwaan1, e.g.

叩關 (kau3 gwaan1) — meaning, pronunciation, examples

叩關 (kau3 gwaan1, kòu guān) — to knock at the gate (old); to make an approach; to invade; to attack the goal (sports)

叩問 (kau3 man6) — to ask humbly; to make inquiries
叩謝 (kau3 ze6) — to express one's sincere gratitude by kowtow
叩 (kau3) — to knock; to kowtow; to ask; to bow
叩應 (kau3 jing3) — call-in (loanword)
叩拜 (kau3 baai3) — to bow in salute; to kowtow
叩球 (kau3 kau4) — spike (volleyball)