形容词塞紧的，拥挤不堪的
动词塞紧，塞得透不过气( jam-pack的过去式和过去分词 )
1. 挤得紧紧的：jam-on packer 卡压式封隔器 | jam-packed 挤得紧紧的 | jam-to-signal 干扰信号比
2. 塞紧的：jam-pack 塞紧 | jam-packed 塞紧的 | jam-up 阻塞
3. 挤紧：jam-free ==> 无干扰的 | jam-packed ==> 挤紧 | jam-to-signal ==> 干扰信号比
4. 塞得紧紧的：jam-pack 塞紧 | jam-packed 塞得紧紧的 | jam-packed 挤得水泄不通的
1. jam-packed的解释
1. 挤满的；拥挤的
If somewhere is jam-packed, it is so full of people or things that there is no room for any more.
e.g. His room was jam-packed with fruit, flowers, gifts etc.
他的房间里堆满了水果、鲜花及礼品等。