required effort是什么意思的~
required effort是什么意思的~
effort是什么意思?
Required是什么意思
the result were minor in comparison with the effort required
An international effort is required to cope with ___ urgent
coordinated effort是什么意思
respiratory effort是什么意思
unremitting effort是什么意思
constant effort是什么意思
outreach effort是什么意思
connetion required是什么意思
required margin是什么意思