空集;空系;
Take the three "cash desks" it set up in its offices, to which employees could bring empty suitcases to be filled with cash.
以公司内设立的三个“收银台”为例,公司员工可以在“收银台”将空公文包装满现金。
E 2 and E 5 sets mainly produced stainable abortive pollens ( SAP ), whereas E 3 set mainly did empty abortive pollens ( EAP ).
E2和E5位点组的作用主要产生染败花粉, 而E3位点组的作用主要产生空败花粉.
He set down the empty glass.
他放下空酒杯.
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