The Conjunction “再说”
In Chinese, “再说” (zàishuō) follows a reason or circumstance already given and adds one more to it.
How it is translated
Depending on the situation:
besides
what is more
and anyway
on top of that
Basic structure
first reason / circumstance，再说 + second reason / circumstance
That is:
The first reason…, and besides, a second one…
A reason or circumstance has already been stated before “再说”; “再说” then adds another one to it.
我提着这些东西就算锻炼身体了，再说邻居之间就是要互相帮助啊
我提着这些东西就算锻炼身体了，
carrying these things counts as exercise for me
再说 + 邻居之间就是要互相帮助啊
besides + neighbours are supposed to help each other out
提着这些东西 — be carrying these things
就算 — it counts as …
锻炼身体 — take exercise
再说 — besides / what is more
邻居之间 — between neighbours
互相帮助 — help each other
今天太晚了，别去超市了，再说外面还在下雨呢
Two circumstances are given here against going to the supermarket:
今天太晚了
it is too late today
再说 + 外面还在下雨呢
besides + it is still raining outside
太晚了 — it is too late
别去超市了 — don’t go to the supermarket
再说 — besides
外面 — outside
还在下雨 — it is still raining
你就跟我们一起参加活动吧。你今天正好有时间，再说人多也更热闹
你今天正好有时间，
you happen to have time today
再说 + 人多也更热闹
besides + the more people the livelier it is
跟我们一起 — together with us
参加活动 — take part in the event
正好有时间 — happen to have time
再说 — besides / what is more
人多 — many people
更热闹 — livelier still
Rule in brief
A，再说 + B
Here:
A — the first reason or circumstance
再说 — besides / what is more
B — the additional reason or circumstance
今天太晚了，再说外面还在下雨呢
你今天正好有时间，再说人多也更热闹