fifthly
adv. 第五地；第五
例句
Fifthly, we need to consider the effect on the local population.
第五，我们必须考虑对当地居民的影响。
《牛津词典》
Fifthly, it is to learn to be patient.
其五是要学习忍耐。
Fifthly, it should have software quality audit.
第五方面它还要有软件质量评审。
