a. 拮据的, 紧张的, 没空的, 忙

v move with force, "He pushed the table into a corner"

v press, drive, or impel (someone) to action or completion of an action

v make publicity for; try to sell (a product)

v strive and make an effort to reach a goal

v press against forcefully without moving

v approach a certain age or speed

v exert oneself continuously, vigorously, or obtrusively to gain an end or engage in a crusade for a certain cause or person; be an advocate for

v sell or promote the sale of (illegal goods such as drugs)

v move strenuously and with effort

v make strenuous pushing movements during birth to expel the baby