臟器逆位1016/S0092-8674(00)81474-9. Stern CD, Wolpert L. Left-right asymmetry: all hands to the pump. Curr. Biol. 2002, 12 (23): R802–803. PMID 12477404. doi:10.1016/S0960-9822(02)01312-X
洗剂Kampf, G.; Ennen, J. Regular use of a hand cream can attenuate skin dryness and roughness caused by frequent hand washing. BMC Dermatology. 2006, 6: 1
基本英语picture, pig, pin, pipe, plane, plate, plough, pocket, pot, potato, prison, pump, rail, rat, receipt, ring, rod, roof, root, sail, school, scissors, screw