A grille is a framework of metal bars or wire which is placed in front of a window or a piece of machinery, in order to protect it or to protect people.
英漢詞典釋義
n.
格子,格柵
a grille over a window窗子上的鐵格子The windows are covered with grilles to deter vandals.窗戶都安上了鐵柵欄，以防止故意破壞。
英英詞典釋義
Noun
1. small opening (like a window in a door) through which business can be transacted
2. grating that admits cooling air to car's radiator
3. a framework of metal bars used as a partition or a grate;