1. Giant pandas should be allowed to die out as they are stuck in an "evolutionary cul-de-sac", according to BBC presenter Chris Packham. 在BBC主持人克里斯。派克汉姆看来，大熊猫应当自行绝迹，因为它们被困在了“进化死胡同”之中。
2. Methods Transverse and longitudinal section scanning was carried out in uterus, bilateral adnexa, cervix and dauglus s cul-de-sac in established cases. 方法：对临床确诊的女性淋病患者，经超声对子宫及双侧附件、子宫颈、子宫后穹窿部位横切及纵切扫描。
3. If there is no evidence of disease multiple intraperitoneal biopsies should be performed including from the cul-de-sac both gutters bladder peritoneum and bowel mesentery. 若有病变证据，可行多处腹膜活组织检查，包括穹窿部、双侧最下腹、膀胱腹膜返褶和肠系膜等处。
英英解释
n.
1. a passage with access only at one end
2. a street with only one way in or out
