Coefficient of drag
阻力系數(shù)
?? 詞語(yǔ)組成解析
coefficient
[,ko?'f??nt]
n. 系數(shù);（測(cè)定某種質(zhì)量或變化過(guò)程的）率;程度;協(xié)同因素;
adj. 共同作用的;合作的;
co共同+ef出+fici做+ent...的 → co共同+efficient做出來(lái)=有效的 → 一起有效的 → 系數(shù)
of
[?v]
prep. 關(guān)于;屬于…的;由…制成;
aux. 助動(dòng)詞 [非標(biāo)準(zhǔn)用語(yǔ)、方言] =have [主用于虛擬語(yǔ)氣];
drag
[dr?g]
vt. 拖拽;吃力地往前拉;拖地而行;
vi. 沿地面拖動(dòng);落后;緩慢前進(jìn);打撈;
n. 拖，拉;累贅;阻力;
??? 情景例句
since ten this morning,
從今天上午十點(diǎn)起，
The doctor did not reveal to him his hopeless condition.
醫(yī)生沒(méi)有向他透露說(shuō)他的病已經(jīng)沒(méi)治了。
as if he were holding it completely enclosed in the hollow of his hand.
就好像完全握在自己手心里一樣。