to break away from; to cast off (old ideas etc); to get rid of; to break away (from); to break out (of); to free oneself from; to extricate oneself[cedict]
石膏
shí gāoㄕˊ ㄍㄠ
gypsum CaSO4·2(H2O); plaster[cedict]
呀
yaㄧㄚ˙
(particle equivalent to 啊 after a vowel, expressing surprise or doubt)[cedict]