We had better buy tea, sugar, etc.是什么意思？

We had better buy tea, sugar, etc.

我们最好买些茶、糖等等。

we

pron. 我们，咱们，笔者，本人，朕，人们；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

had

v. 有（ have的过去式和过去分词 ），（亲属关系中）接受，拿，买到；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

better

adj. 较好的，更合适的，能力更强的，好转的；adv. 更好地，更妥，更；v. 胜过，上进；n. 更好者，更有才智者；

例句
...an opportunity for the leaders to become better acquainted.
增进领导人之间相互了解的机会

buy

vt.& vi. 购买，购得；n. 交易，买卖，便宜货；vt. 够支付，买通，收买，贿赂；

例句
I intend to take full advantage of this trip to buy the things we need.
我打算充分利用这次旅行来购买我们所需的物品。

tea

n. 茶水，茶，茶树，午后小吃；vt. 给…沏茶；vi. 喝茶；

例句
The tea is prepared on a rota basis by the lady members...
女性成员轮流准备茶水。

sugar

n. 食糖，一匙糖，宝贝儿，亲爱的；vt. 在…加糖，给…裹上（糖衣或类糖物）；vi. 形成糖；int. （做了蠢事或出现差错时表示懊恼，用作 shit 的委婉语）哎呀，真是的；

例句
During rationing we had a sugar allocation.
定量配给时期，糖是限量配给的。

etc

adv. 等等及其他，诸如此类；abbr. [拉丁语]et cetera（常读作 and so forth）；

例句
This rate includes big and small of the accelerograph , and direction, etc on the radio.
这个比例包括油门的大小, 方向远近, 等等.