1)no progress simply means regression,不进则退2)He who does not advance falls backward.,不进则退3)Not to advance is to go back.,不进则退4)Given this pressing situation,we must move forward,or we will fall behind.,形势逼人，不进则退5)He who does not advance loses ground.,逆水行舟，不进则退。6)Double exhaust valve without intake,双排不进7)addition without carry,不进位加8)NOC NOt C Carry,不进位9)long-term nonprogress,长期不进展10)round down,不进位舍入
用法和例句
It was said thatthe defection and deletion of nef was associated with long-term nonprogression afterinfecting with HIV by studying on subtype B, CRF01 AE and SIV.
