seasonal testing的用法和樣例：
例句
- The supervision of the customs and the inspection of commodities should also be reinforced at seasonal frontier ports.
季節性的邊境口岸也要加強海關(guān)監管和商品檢驗。 - Seasonal vaccines are traditionally produced from high-growth reassortant viruses, which have been derived empirically using well-established techniques.
季節性流感疫苗是由復制迅速的重組病毒生產(chǎn)的，這種傳統的方法是經(jīng)過(guò)實(shí)踐檢驗形成的成熟技術(shù)。
