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在《PONS词典》中的词汇

jam up 动词 trans

1. jam up (fix in position):

to jam sth up [against sth]
etw dicht gegen etw 第四格 rücken [o. an etw 第四格 heranrücken]

2. jam up (block up):

to jam up sth
Present
Ijam up
youjam up
he/she/itjams up
wejam up
youjam up
theyjam up
Past
Ijammed up
youjammed up
he/she/itjammed up
wejammed up
youjammed up
theyjammed up
Present Perfect
Ihavejammed up
youhavejammed up
he/she/ithasjammed up
wehavejammed up
youhavejammed up
theyhavejammed up
Past Perfect
Ihadjammed up
youhadjammed up
he/she/ithadjammed up
wehadjammed up
youhadjammed up
theyhadjammed up