tactile sticks-a sign of safety colourstactile sticksa sign of safety coloursstactile sticks－a sign of safety colours安全: safe; secure; safety; securi ...色: colour标志: sign; mark; symbol; hallmark ...安全色, 安全标志颜色: safety colour安全色；安全色: safety color下载手机词典可随时随地查词查翻译
