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在《PONS词典》中的词汇

count down 动词 不及物动词

count down 航天

mis·sion ˈcount-down 名词

Present
Icount down
youcount down
he/she/itcounts down
wecount down
youcount down
theycount down
Past
Icounted down
youcounted down
he/she/itcounted down
wecounted down
youcounted down
theycounted down
Present Perfect
Ihavecounted down
youhavecounted down
he/she/ithascounted down
wehavecounted down
youhavecounted down
theyhavecounted down
Past Perfect
Ihadcounted down
youhadcounted down
he/she/ithadcounted down
wehadcounted down
youhadcounted down
theyhadcounted down