5 sentences

1. 这条河流最终注入大海。

   zhè tiáo hé​liú zuì​zhōng zhù​rù dà​hǎi.

   This river eventually flows into the sea.

   Source: Dong Chinese Dictionary

2. 这条河流最终注入了大海。

   zhè tiáo hé​liú zuì​zhōng zhù​rù le dà​hǎi.

   This river eventually flows into the sea.

   Source: Dong Chinese Dictionary

3. 这条大河最终注入了大海。

   zhè tiáo dà​hé zuì​zhōng zhù​rù le dà​hǎi.

   This large river eventually flows into the sea.

   Source: Dong Chinese Dictionary

4. 这条河流经我国境内，最终注入大海。

   zhè tiáo hé​liú jīng wǒ guó jìng​nèi, zuì​zhōng zhù​rù dà​hǎi.

   This river flows through our country and eventually empties into the sea.

   Source: Dong Chinese Dictionary

5. 他的加入给团队注入了新的活力。

   tā de jiā​rù gěi tuán​duì zhù​rù le xīn de huó​lì.

   His joining has injected new vitality into the team.

   Source: Dong Chinese Dictionary