Sour-faced
臉色陰沉的；顯得不高興的
?? 詞語組成解析
sour
['sau?]
adj. 有酸味的;敵對的;壞脾氣的;別扭的;
vi. 變酸，變餿;發酵;厭煩;敗壞;
vt. 變壞，惡化;使變酸;使失望;使不毛;
n. 酸味;苦事;
a. 有某種面孔或表情的
??? 情景例句
Do you know anything about South American culture?
你了解南美洲的文化嗎？
Third, straightforwardness is important, too.
最后坦率也很重要。
among historians of science a new and more sophisticated picture has emerged.
但在科學史家中間，一個新的更加復雜的伽利略的形象出現了。