I'm not convinced he's on the level.

我不相信他是真诚的。

Are you sure this deal is on the level?

你确信这笔交易合法吗？

The number of juniors and the values of their attributes depend on the level of the sports academy and its staff.

年轻人的数量和他们的属性值取决于体育学院及其工作人员的水平。

Concurrency control and logging happens on the level of full documents.

并发控制和日志记录在完整文档级进行。

Of course, we should also use discretion, depending on the level of service.

当然我们也可以自己选择，根据服务的质量而定。