例句與造句

1. Both types will often ulcerate , leaving a raw , sometimes bleeding area in the centre of the growth
   兩種皮膚癌都常會(huì)出現(xiàn)潰瘍的情況，在腫瘤生長(zhǎng)的中心位置留下粗糙且有時(shí)出血的傷處。
2. It's difficult to find bleeding area in a sentence. 用bleeding area造句挺難的