摘要：
A chain is no stronger than its weakest link. 链条的坚固程度取决于它最薄弱的环节。 The same as the well-known buckets effects, that is, the capacity of a bucket depends 阅读全文
摘要：
A great ship asks deep water. 巨轮寻深水而航行。 A great ship needs deep water so as to get enough buoyancy to keep itself afloat in the water, if it carelessl 阅读全文