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trung sinh » truong sinh, trong sinh, trung binh
truoc cang » truoc cong, truoc bang, truoc cach
phan thong » phan thuong, phan hong, phan tong
sinh khoa » sinh hoc, sinh hoat, anh khoa
pho thong » he thong
thi truoc » thi truc, tho truoc, thi truong
sach tai » sach bai, sach tham, sach dao
khoa pho » khoa phu, khoa khoa, khoa phau
thu sach » thuat sach, thuoc sach, thu hoach
sach thi » sach thu, sach thieu, sach tham
cang hoa » hang hoa, cong hoa, nang hoa
hoa phan » hoa dan, co phan
tu sach » su sach, te sach, tu cach