Please accept my apologies for any trouble my mistake has caused you.
因为我的失误给你添麻烦了,请接受我的道歉。
As soon as I get to Guangzhou, I'll drop you a line.
我一到达广州,就给你写信。
But even in the most favourable circumstances only a small fraction of the creatures that die are preserved in this way before decay sets in or, even more likely, before scavengers eat them.