单词	valid obligation
释义	valid obligation 有效债务
随便看	surface acoustic wave transducer surface acoustic wave waveguide surface acting surface acting fungicide surface action surface action group surface activated bonding surface activated plant components surface-activated polymerization surface activation surface activator surface-activator surface active surface-active surfaceactive surface-active agent surface active agent surface active agent adjuvant surface active agent ad uvants surface active agent pollution surface-active agents surface active agents surface active anion surface-active anion surface active cation lgpy lgqf lgqj lgqs lgsl lgss lgsx lgsz lgtc lgtt 政协政变政坛政委政学系政审政客政局政工政府