jacket [ˈdʒækɪt] n. 短上衣，夹克衫
January [ˈdʒænjʊərɪ; (US) ˈdʒænjʊerɪ] n. 一月
Japan [dʒæˈpæn] n. 日本
Japanese [dʒæpəˈniːz] a. 日本的，日本人的，日语的n．日本人，日语
job [dʒɔb] n. (一份)工作
join [dʒɔɪn] v. 参加，加入；连接；会合
After he graduated from college, he joined the army.
他大学毕业后，去当兵了。
Join one section of pipe to the next.
把一段管道与相邻的管道连接起来。
join sb. 加入、会面或相见
Ask him to join us for lunch. 请他和我们一起吃午饭。
join sth. 参加（某组织）
He joined the Party last year. 他去年入的党。
join in sth. 参加（某活动）
近义词辨析：attend, join, take part in
attend 是指出席或参加会议、聚会、讲座等；
join是加入到某一组织、团体或人群中去，并成为其中的一员；
take part in 是参加到某项活动中。
Did you attend the meeting last Friday?
你参加上周五的会议了吗？
When did you join the club?
你什么时间加入的俱乐部？
All the students take part in the party.
所有的学生都参加了聚会。
joke [dʒəʊk] n. 笑话
Don’t be angry. It’s just a joke. 别生气，这只不过是个玩笑。
I didn’t mean any harm. I was just joking. 我并没恶意，我不过开个玩笑。
play a joke on 开某人玩笑
It’s impolite to play a joke on others. 开别人玩笑是不礼貌的。
journey[dʒɜːnɪ] n. 旅程，旅途
juice [dʒuːs] n. 汁；液
July [dʒʊˈlaɪ] n. 七月
jump [dʒʌmp] v. 跳跃；惊起；猛扑
The children were jumping up and down with joy.
June [dʒuːn] n. 六月
just[dʒʌst] ad.a. 刚才；恰好；不过
just now 刚才
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