Light quantity
[計(jì)] 光通量
?? 詞語(yǔ)組成解析
light
[la?t]
n. 光;發(fā)光體;電燈;點(diǎn)火器;
adj. 輕的;明亮的;淺色的;少量的;
v. 點(diǎn)燃;照亮;用光指引;
adv. 輕地，輕裝地;
quantity
['kwɑnt?ti]
n. 量，數(shù)量;定量，大批;數(shù)目;[語(yǔ)音學(xué)、韻律學(xué)]音量（指元音或音節(jié)的長(zhǎng)短）;
quant 多少，數(shù)量+ ity 表名詞 → n.量，數(shù)量，分量
??? 情景例句
Terrific!
妙極了！
My brain doesn't seem to be working well today.
我的頭腦今天好像不太靈光。
No. The next development was to carve the characters on a piece of wood.
是的，不象。下一步的發(fā)展是將漢字刻在一片木板上。