double half hitchtwo half hitches双: two; twin; both; dual半结: half-hitch; half-knot双半工: simplex halfduplex; simplex， halfduplex半结肠: hemicolon半结点: half-joint下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:双半结，即可在微信中查询翻译
