1. a worker who finds employment only in certain seasons

1. occurring at or dependent on a particular season;

   "seasonal labor"
   "a seasonal rise in unemployment"
   

1.季节的;季节性的;随季节变化的
Aseasonal factor, event, or change occurs during one particular time of the year.

e.g. ...blamingseasonal factors for the unemployment increase in the west...
把西部失业率的上升归咎于季节性因素
e.g. seasonal variations need to be taken into account.
需要考虑到季节性变化。

1. 季節：规定了根据季节(seasonal)类别定义的机动车汽油和柴油燃料的标准. 列出了根据技术法规制定的要求实施标准的清单. 内容描述:这八项关于不同类型的测量仪器的条例将瑞士法律与新的欧共体关于测量仪器(MID)的指令2004/22/EC协调一致.

2. 季节性：过敏性鼻炎分为季节性(seasonal)及常年性(perenial)鼻炎二种,季节性患者通常会有较会有较明显的眼睛症状,如流眼泪及结膜分泌物,常年性则有鼻部症状(如鼻塞)其特征有用口呼吸、打鼾、嗅觉丧失、咳嗽、头痛、听力减退及口臭.

3. 季节的：44) seasonable 及时的 |seasonal 季节的 | 45) spiritual 精神的

4. 季节性的：searching n.搜索 |seasonal 季节性的 | second n.秒,第二的