许多人错过了促销，仅仅是因为没看到那封邮件。

Many people missed the sale ___simply because they didn't see the email.

我喜欢这家咖啡馆，仅仅是因为它舒适的氛围。

I love this café ___simply because of its cosy atmosphere.

这个决定仅仅是基于成本，而非质量。

The decision was based ___simply on cost, not quality.