It has a predictable, six-month release schedule, with occasional Long Term Support versions that are supported with security updates for three to five years.
它有一个可预计的、6个月的发行计划，并有三到五年安全更新支持的偶尔的长期支持版本。
2
You could only really tell the effects of the disease in the long term, and five years wasn't long enough.
这种疾病的影响只有在长期内才能真正看清楚，而5年是不够长的。
《柯林斯英汉双解大词典》
3
The National Assembly constitutionally should be elected every five years for a five year term.