1.fickle
Never seen a search engine so fickle as Google.
adj.反复无常的;易变的;无常的
2.negligient adj. 疏忽的；粗心大意的
I had a page doing pretty good as well, but I sort of became negligient and didn't even see the hosting expiring, and lost the progress... Can I recover it?
3.fluff
n. (衣服等上的)蓬松毛团;(禽兽，尤指幼者的)绒毛;没多大意义的娱乐;
I identified 99.95% of content on the internet is fluff.
4.
I am trying to get AdSense approved but am getting denied for "Low Value Content".
5.
As the predecessors wrote.
6.refer to
Several times a year, Google makes significant, broad changes to our search algorithms and systems. We refer to these as core updates,
我们将这些称为核心更新，
7.sloppy adj.马虎的;草率的;凌乱的;庸俗伤感的;太稀的;肥大而难看的;
Is the content produced well, or does it appear sloppy or hastily produced?