脆弱: weak, frail...
炎症: inflammation...
叶子: foliage, leaf, (slang) marijuana, weed...
全方位: all around, omnidirectional, complete, holistic, comprehensive...
博大精深: wide-ranging and profound, broad and deep...
支持: to be in favor of, to support, to back, support, backing, to stand by...
痰: phlegm, spittle...
绿灯: green light (traffic signal), permission to proceed...
小丑: clown...
理论: theory, to argue, to take notice of...