secondly

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++sec·ond·ly /ˈsekəndli/ ●●○ S3 adverb [sentence adverb]  AFTERused when you want to give a second point or fact, or give a second reason for something 第二，其次 → firstly Firstly, they are not efficient, and secondly, they are expensive to make. 首先，它们效率不高，其次，它们的制作成本很高。

Examples from the Corpus

secondly• Death had brushed Dustin's cheek twice, threatening to take him first by fire and secondly by a bomb.• With annoyance calls, first of all, don't carry on a conversation. And secondly, hang up quickly and quietly.• The more you practise the better you will become at selecting historical information to suit firstly your essay and secondly your argument.

sec·ond·ly adverbChineseSyllable  

a second used want to give you Corpus when

secondly
sec‧ond‧ly S3 /ˈsekəndli/ adverb [sentence adverb]
used when you want to give a second point or fact, or give a second reason for something ⇨ firstly:
    Firstly, they are not efficient, and secondly, they are expensive to make.

sec·ond·lyBrE /ˈsekəndli/ 🔊NAmE /ˈsekəndli/ 🔊 adverbused to introduce the second of a list of points you want to make in a speech or piece of writing （用于列举）第二，其次◆Firstly, it's expensive, and secondly, it's too slow. 首先是价格贵，其次，速度太慢。🔊🔊