The free tier is ad-supported and places caps on the number of hours that music can be streamed and the number of times a song can be listened to each month.
免费服务含广告，且每月可以播放音乐的时间，以及同一首歌可以收听的次数都受到限制。
In what seems to be a response, Amazon has made available a free AWS Usage Tier for new customers for one year.
似乎是作为对此的响应，Amazon为新用户提供一年的AWS免费使用方式。
The database tier has to process transactions in an environment as near latency-free as possible.
数据库层必须尽可能没有延迟地处理环境中的事务。
It's no secret me, Chris and LeBron are good friends, "Wade said Wednesday of possibly adding a second top-tier free agent along with Bosh."
“对于我来说，这不是什么秘密，詹姆斯和克里斯都是很好的朋友，”韦德星期三这样说，球队可能还会新添一名顶级自由球员同波什并肩作战。
In Europe, Tier 1 ratios were distorted because bank regulators decided that sovereign debt (the bonds of countries including Greece and Portugal) should be considered risk-free.
在欧洲，由于银行高管认定主权债务(包括希腊和葡萄牙在内的国家的债券)没有风险，一级资本充足率便被扭曲了。
Just as weak southern-tier economies need to free up their Labour and product markets and boost competitiveness, so surplus countries like Germany need to promote spending at home.
就像南线弱小经济体需要解放他们的劳动力、实现商品市场的自由化及提升竞争力一样，德国这样的预算盈余国则需要提高国内消费需求。
If you are interested in learning more about our AWS free usage tier, see our AWS free usage tier article.
如果你有兴趣学习更多关于我们的AWS免费使用层，看到我们的AWS免费使用层。
If you are interested in learning more about our AWS free usage tier, see our AWS free usage tier article.
如果你有兴趣学习更多关于我们的AWS免费使用层，看到我们的AWS免费使用层。
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