By enduring its incessant and painful prickling, the clam turns a grain of sand into a pearl.
By enduring its incessant and painful prickling, the clam turns a grain of sand into a pearl.
珍珠的形成，皆因蚌能竭力忍受，沙粒不断刺激的痛苦。
By enduring its incessant and painful prickling, the clam turns a grain of sand into a pearl.
珍珠的形成，皆因蚌能竭力忍受，沙粒不断刺激的痛苦。