in season
 上市的,當令的;及時的,適時宜的


 Sea·son n.
 1. One of the divisions of the year, marked by alterations in the length of day and night, or by distinct conditions of temperature, moisture, etc., caused mainly by the relative position of the earth with respect to the sun. In the north temperate zone, four seasons, namely, spring, summer, autumn, and winter, are generally recognized. Some parts of the world have three seasons, -- the dry, the rainy, and the cold; other parts have but two, -- the dry and the rainy.
    The several seasons of the year in their beauty.   --Addison.
 2. Hence, a period of time, especially as regards its fitness for anything contemplated or done; a suitable or convenient time; proper conjuncture; as, the season for planting; the season for rest.
    The season, prime for sweetest scents and airs.   --Milton.
 3. A period of time not very long; a while; a time.
    Thou shalt be blind, not seeing the sun for a season.   --Acts xiii. 11.
 4. That which gives relish; seasoning. [Obs.]
    You lack the season of all natures, sleep.   --Shak.
 In season, in good time, or sufficiently early for the purpose.
 Out of season, beyond or out of the proper time or the usual or appointed time.