Tangent screen
[醫] 正切暗點計屏, 布耶魯姆氏屏(正面視野計屏)
?? 詞語組成解析
tangent
['t?nd??nt]
n. <數>正切;突然轉移話題;突兀的轉向;（鐵路或道路的）直線區間;
adj. <數>正切的;相切的;切線的;離題的;
tang接觸+ent具有...性質的→相切的；接觸的
screen
[skrin]
n. 屏幕;銀幕;屏風;
vt. 掩藏;庇護;檢查;放映;
??? 情景例句
For example, did you know that 1 in 4 teenagers has tried marijuana?
比如，你是否知道4個青少年中就有1位曾經吸過大麻？
I've bee invited over to a friend's, and you?
有個朋友請我去作客，你呢？
If you let one drop of his blood fall, you will lose all your land and all your money.
要是你讓他身上的血流下一滴，你將失去你所有的土地和財產。