Astronomy is worthy of study carefully.

天文学值得仔细研究。

This is the phenomenon we shall study carefully.

这一现象，值得我们深思。

To be sincere, study carefully, friendship sincerely, happy life.

⊙、做人诚心，学习细心，友情真心，生活开心。

Please study carefully our terms and conditions, especially the terms on secrecy, a pre -requisite for this transaction.

请仔细研究我们所提的条款和条件。特别是关于进行转让的先决条件，即保守秘密的条款。

A spokeswoman for the UK's Department of Health said it would consider the study carefully once the complete article had been published.

一位英国卫生部发言人说，等完整论文发表后，他们会仔细考量这份研究。