仰天长啸: cry into the air; make a long wheezing noise in the open air
仰天长叹: lift up one's eyes and sigh; cast one's eyes up to the sky and sigh deeply; look up to the heavens and draw a sigh; look up to heaven and sigh heavily; look up to the sky and keep heaving
仰天兴叹: look up to the sky and draw a sigh; looking up at heaven and lamenting
仰天垂泪: gaze up at the sky and let the tears roll down one's cheeks