obtrusion

n 1 [U] (fml 文) action of obtruding 强行加入; 闯入: the obtrusion of unwelcome guests 不速之客的闯入. 2 [C] thing that obtrudes 强加的事物: unwelcome obtrusions 强加的令人不快的事物.

obstacle, obstacle race, obstetric, obstetrician, obstetrics, obstinacy, obstinate, obstinately, obstreperous, obstreperously, obstreperousness, obstruct, obstruction, obstructionism, obstructionist, obstructive, obstructively, obtain, obtainable, obtrude, obtrusive, obtrusive-ness, obtrusively, obtuse, obtuse angle, obtusely, obtuseness, obverse, obviate, obvious, obviously, obviousness, ocarina, occasion, occasional, occasional table, occasionally, Occident, Occidental, occlude,