单词	letter drop-off
释义	letter drop-off 邮箱
随便看	differential attention differential attenuation differential attenuation mode differential attenuator differential audio output differential auto-correlation differential automatic system differential automorphism differential automorphism group differential axis differential axle differential axles differential backup differential back-washing differential balance differential ballistic wind Differential Ballistic Wind Computer Differential Ballistic Wind Offset differential band brake differential base differential bathygraph differential bearing differential bearing adjusting nut differential bearing adjustinng nut differential bearing cone