We must ensure that tourism develops in harmony with the environment.

我们必须确保旅游业与环境和谐发展。

Perhaps more than ever, the book begs to be revisited as technology develops at an unrelenting speed.

如今，科技发展的速度势不可挡，这本书也许比以往任何时候都更需要人们去重温。

The company develops and markets new software.

这个公司开发并销售新软件。

The disease develops gradually and imperceptibly.

该疾病难以察觉地逐渐发展着。

As speech develops, the child starts to string more words together.

随着言语的发展，这个孩子开始把更多的词语连串起来。

The government is keeping a close watch on how the situation develops.

政府正在密切注视着形势的发展。

The film starts off realistically and then develops into a ridiculous fantasy.

电影开始的时候比较逼真，然后却发展成为荒谬的幻想。