Liver spot
[醫]雀斑, 褐黃斑, 老年斑
?? 詞語組成解析
liver
['l?v?]
n. 肝臟;（食用）肝;深赤褐色;生活者;
adj. 肝味的;深赤褐色的;
spot
[spɑt]
n. 地點，場所;斑點，污點;[股票]現貨;職位，職務;
v. 弄上污漬，弄上斑點;污辱，玷污;認出，發現;散步;
adj. 現場的;現貨的;插播的;
abbr. satellite positioning and tracking 衛星定位和跟蹤;
??? 情景例句
I'd like to propose a toast.
我想來祝酒。
Who is she?
她是誰？
Oxygen is widely used in ship repairs for cutting and joining metal plates or pipes.
在船舶修理過程中，常常使用氧氣切割和焊接金屬板或金屬管。