永久: permanent; perpetual; everla ...的: 4次方是 The fourth power of 2 i ...不断: ceaseless; unceasing; uninte ...一年到头: throughout the year; in seas ...一年到头的: all-the-year; perennial; perpetual一年到头的, 整年的: year-round一年到头: throughout the year; in season and out of season; year in, year out; the whole year; (all) the year round 他一年到头工作, 没有假日。 he works all the year round, without a holiday一年到头,经常: in season and out of season一年到头,全年: all year round一年到头;终年: all year around整年, 一年到头: all the year through终年;一年到头: all year round一年四季, 一年到头: at all seasons一年四季,一年到头: at all seasons一年到头,任何时候: in season and out of season一年到头几乎相同: almost the same all year round他一年到头工作没有假日: he works all the year round without a holiday不断的: ceaseless; constantly; continual; continued; continuous; endless; eternal; everbearing; never-ending; nonstop; perpetual; unceasing; uninterrupted; unremitting永久的: abiding; aeonian; enduring; eternal; everdurimg; everlasting; for good; nonvolatile; perdurable; perennial; permanent; pernanent; perpetual; secular; sempiternal; settled不断,持久的: constant不断的,连续的: incessant不断的抱怨: constant complaints不断的变化: fluxion不断的滴水: drip drop; drip-drip; drip-drop不断的鼓励: a constant source of encouragement