不幸的是，我坐在桌旁，两边都有吸烟者。

Unfortunately I was sitting at the table with smokers on ___either ___side of me.

有两个入口，露营地两端各一个。

There are two entrances, one at ___either ___end of the campsite.

你可以看它吃东西：用后腿站立，前腿拿着坚果，然后把整个坚果放进它嘴巴两边的其中一个“袋子”里。

You can watch it while it's eating: standing up on its back legs and holding the nut with its front legs, then putting all of it into one [of] its two "sacks" on ___either ___side of its mouth.