one another
【彼此、互相】
one another
= 彼此、互相
例如：
They help one another.
= 他们互相帮助。
所以：
looking out for one another
= 互相照顾、互相帮助
one another
= 彼此、互相
例如：
They help one another.
= 他们互相帮助。
所以：
looking out for one another
= 互相照顾、互相帮助