在肺部，布满粘液的支气管像树一样又分为成千上万个更小的管(细支气管)，他们连接到叫做肺泡的小囊。

Within the lungs, the mucus-lined bronchi split like the branches of a tree into tens of thousands of ever smaller tubes (bronchioles), which connect to tiny sacs called alveoli.

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典型的杯状细胞类癌不形成有管腔的腺体，且肿瘤细胞呈单个浸润或表现为由粘液细胞和神经内分泌细胞组成的小的实体巢状。

Typical goblet carcinoid does not form glands with lumen, and the tumor cells infiltrate individually or as small solid nests consisting of mucocytes and neuroendocrine cells.

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