The use of standard color solutions or of most proprietary devices is impractical because of possibilities of breakage, spillage, or lack of a suitable power source .是什么意思_The use of standard color solutions or of most proprietary devices is impractical because of possibilities of breakage, spillage, or lack of a suitable power source .在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句