shadow-box

v [I] box with an imaginary opponent 与假想对手打拳: shadow-boxing alone in the ring 在拳击台上自己练习打拳.

sexual, sexual intercourse (also intercourse), sexuality, sexually, sexy, SF, sgd, Sgt, sh, shabbily, shabbiness, shabby, shack, shackle, shad, shade, shadily, shadiness, shading, shadow, shadow-boxing, shadowy, shady, shaft, shag, shagged, shaggily, shagginess, shaggy, shaggy-dog, shah, shake, shake hands with, shake off, shake sb off, shake sb up, shake sth out, shake sth up, shake up, shake-up (also `shake-out),