Whether there are some area where have too thich material might cause sink mark. Sample Textwhether there are some shrink marks that was caused by too thick material是什么意思_Whether there are some area where have too thich material might cause sink mark. Sample Textwhether there are some shrink marks that was caused by too thick material在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句