1. Antonyms for Busily include idly, inactively, quietly, languidly, lazily, passively, casually, lethargically, sluggishly and unthinkingly

2. (Mic 3:8; Zec 4:6; Lu 1:17, 35; Ac 10:38) “Power” is basically the ability or capacity to act or do things and it can be latent, dormant, or inactively resident in someone or something.

3. The present invention relates to a method for selecting a high expression recombinant cell line using an expression vector including: (i) a gene expression cassette containing a selection marker gene to which polyA is inactively connected; and (ii) a gene expression cassette for coding target recombinant proteins to which polyA is actively connected.