Respiration dead space
[醫(yī)] 呼吸無效區(qū)
?? 詞語組成解析
dead
[d?d]
adj. 死去的;完全的;無感覺的;呆板的;
adv. 完全地;非常;絕對;極度;
n. 死者;（死一樣的）寂靜;極寒時候;
space
[spes]
n. 空間，太空;空白，間隔;空隙;片刻;
vt. 把…分隔開，留間隔于…之間;
vi. 以一定間隔排列;
??? 情景例句
What are you doing up this late?
這么晚了你還沒睡在做什么？
How many gallons are you going to take?
你要拿幾加侖？
These days, advertisers not only offer free samples, but free cars, free houses, and free trips round the world as well.
目前，做廣告的人不僅提供免費樣品，而且還提供免費汽車，免費住房，免費周游世界。