肺癌是一種惡性腫瘤，通常於下呼吸道系統，如支氣管和細支氣管的表皮細胞等

肺癌是一種惡性腫瘤，通常於下呼吸道系統，如支氣管和細支氣管的表皮細胞等部位產生。

結果 (英文) 1:

Lung cancer is a malignant tumor, generally at the respiratory system, such as the bronchi and bronchioles produce epidermal cells and other parts.

結果 (英文) 2:

Lung cancer is a malignant tumor that is usually produced in the lower respiratory system, such as the epidermal cells of bronchial and thin bronchial tubes.

結果 (英文) 3:

Lung cancer is a kind of malignant tumor, which is usually produced in the lower respiratory system, such as the epidermis cells of bronchi and bronchioles.