考研英語長難句｜Day13

01

今日長難句

But height loss can also be due to osteoporosis, a bone disease that develops when bone mineral density and bone mass decreases, or when the quality or structure of bone changes.

02

詞彙解析

height loss 變矮

osteoporosis [ˌɑːstioʊpəˈroʊsɪs] n. 骨質疏鬆（症）

density [ˈdensəti] n. 密度，濃度

bone mineral density 骨密度

bone mass 骨量

decrease [dɪˈkriːs ] v. 減少，降低

03

結構分析

✔句子主幹：

But height loss can also be due to osteoporosis

✔同位語：

a bone disease

✔定語從句：

that develops

✔狀語從句1：

when bone mineral density and bone mass decreases

✔狀語從句2：

or when the quality or structure of bone change

04

參考譯文

But height loss can also be due to osteoporosis, a bone disease that develops when bone mineral density and bone mass decreases, or when the quality or structure of bone changes.

Version1：但變矮也可能是骨質疏鬆導致的。骨質疏鬆症是一種骨骼疾病，當骨密度和骨量下降時，或當骨骼質量或結構發生變化時，就會發生。

Version2：但變矮也可能是由骨質疏鬆導 致的，骨質疏鬆指的是骨密度和骨量下降，或骨骼質量或結構發生改變。