1. 这是个什么词？
词：seasonal
英英释义：happening, expected, or needed during a particular season
例句：Every year Latin Americans travel to the US to do seasonal work, such as picking fruit.
2. 为什么选这个词？
“seasonal”是形容词，意思是“节令性的、季节性的”。一般用它来形容某个季节出现的物产、现象等，在一些语境中使用会显得简洁、准确、地道。
比如某个地区一般只是夏季下雨，这种雨就是季节性的，就可以说：
This area is characterized by seasonal rains.
我们经常见到的时令性水果可以说 seasonal fruit，比如：
Seasonal fruit is widely considered one of the healthiest foods.
有的工作分忙时和闲时，比如水果的种植和收获季都是忙时，每年会有拉美人去美国采摘水果，就可以说：
Every year Latin Americans travel to the US to do seasonal work, such as picking fruit.
或
Seasonal fruit pickers travel to America every year and send paychecks to their families back home.
每年感恩节和圣诞节，美国的各大商场为了应对购物潮，都会雇佣临时工，今年 11 月底《经济学人》Finance and economics 版块一篇文章还专门分析了这种现象，文章摘要是这样写的：
As firms struggle with seasonal hiring, Amazon turns to automation.
文中 seasonal 出现了多次，包括这句：
J.C. Penney, a department-store chain, is luring seasonal workers by entering them in a raffle for gifts and holidays.
3. 怎样学会使用这个词？
1）翻译下面的句子：
很多旅游目的地都有旺季和淡季，旺季往往会雇佣不少季节性工人。
Many senic spots have high season and low season, and they tend to hire seasonal workers during high season.
（参考翻译：High season and low season mark many tourist destinations, which tend to hire a good number of seasonal workers. 或 Many tourist destinations have high season and low season, and tend to hire a decent amount of seasonal labor during high season.)
2）结合自己的生活、学习、工作、兴趣等，想象在什么语境下会用到这个表达。先简要描述这个场景，再造句。
例子： 梅雨是季节性的
场景 ：The plum rain is seasonal.
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