obtainable

a.可得到的

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