Black and white transmission
[電] 黑白發射
?? 詞語組成解析
black
[bl?k]
adj. 黑（色）的;黑色人種的;黑暗的;不加牛奶的;
n. 黑色;黑人;黑顏料;黑暗;
v. 使變黑;抵制;拒絕;使變黑暗;
and
[?nd, ?n,?nd]
conj. 和，與;而且;于是，然后;因此;
white
[wa?t]
adj. 白色的，純潔的;無色的，透明的;白衣的;白種人的;
n. 白色;白種人;空白;白色顏料;
vt. （書寫，印刷等）留出空白處;使變白色，刷白;漂白;
??? 情景例句
Are you married or single?
你結婚了還是單身？
Some students quit school due to poverty.
一些學生因貧困而輟學。
All the thing I had packed so carefully were soon in a dreadful mess.
所有細心包裝好的東西一會兒工夫就亂成一團。