One writer suggested that if the perforations happen to be perfectly round, some little pebble should be inserted to break up the regularity of the circle.是什么意思_One writer suggested that if the perforations happen to be perfectly round, some little pebble should be inserted to break up the regularity of the circle.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句