1、Bill Venners: What is the business case to add tests retroactively if you have no tests currently?
比爾：如果你目前沒(méi)有任何測(cè)試，那么還有必要追加測(cè)試么？

2、Time stamps are not retroactively updated to reflect changes in the system time.
不會(huì)以追溯方式更新時(shí)間戳來(lái)反映系統(tǒng)時(shí)間的更改。

3、The new rules wouldn't be applied retroactively to companies that have already received aid.
新規(guī)定可能不會(huì)往前適用于已經(jīng)接受救助的公司。