selector选择: pick and choose; select器: implement; utensil; ware分选: sizing; size classification; ...微分选择器: differentiator selector选择器分离片: select separating plate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:选择器分选器，即可在微信中查询翻译
