資料來源 : pyDict

免罰,釋放,錯過

資料來源 : Webster's Revised Unabridged Dictionary (1913)

Let-off \Let"-off`\ (l[e^]t"[o^]f`; 115), n. (Mach.)
   A device for letting off, releasing, or giving forth, as the
   warp from the cylinder of a loom.