notothyrial platform(pseudocruralium)pseudocruralium背: body's back三角: triangle; trigonometry; trig ...台: tower三角台: tribrach旁面三角台: prismatoid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:背三角台,即可在微信中查询翻译