Adverb:

1. one by one; one at a time;

   "they were arranged singly"
   

2. apart from others;

   "taken individually, the rooms were, in fact, square"
   "the fine points are treated singly"
   

butconj.但是prep.除 ... 以外adv.仅仅；只pron.无不

eachpron.每个；个人；个自adj.每；每个adv.每个

apartadv.相距；分开地；分别地adj.分开的；分离的

individuallyadv.个别地；单独地；独特地

one by one一个接一个地； 依次地

separatelyadv.分别地；个别地；独立地；分开地

aloneadj.单独的；独自一人的；孤单的adv.独自地；仅仅

one at a timeadv.每次一个

piecemealadj.零碎的；逐渐的adv.逐个地；零碎地

severallyadv.各自地；分别地；分开地

multiplyvt.乘；增加vi.做乘法；繁衍adv.多样地；多重地

1. Guests arrived singly or in groups.
   客人有单个来的，也有三三两两一起到的。
2. Do you teach your students singly or in groups?
   你教学生是个别地教还是按组教？
3. She still lives singly now.
   她现在仍然过着单身生活。
4. Misfortunes never come singly,but you shouldn't give it up.
   虽然祸不单行，但是你不应该放弃。