英语翻译And these patterns can be very distinctive since they’re
英语翻译
And these patterns can be very distinctive since they’re determined by the climate.
since the laws of physics,not some arbitrary decision,...
(如果是表示原因的话,是不是since就不用管它是不是管它是不是用在完成时里了?)
第一句是直到的意思?怎么这么别扭