The Chinese characters "窟閒" are pronounced as "kū jiàn". In English pronunciation, there is no direct equivalent as these are Chinese characters. However, for reference, "kū" could be approximated as something like "coo" (as in "coo of a dove") but with a "k" sound at the beginning. "jiàn" could be thought of as similar to "jean" but with a "j" sound that is more like the "j" in "jet". Overall, these are just rough approximations as Chinese pronunciation is quite different from English.
