新建的图书馆将在明年正式落成。

Xīnjiàn de túshūguǎn jiāng zài míngnián zhèngshì luòchéng.

The newly built library will be officially completed next year.

这座桥的落成为城市交通带来了便利。

Zhè zuò qiáo de luòchéng wèi chéngshì jiāotōng dàilái le biànlì.

The completion of this bridge has brought convenience to urban transportation.

工程经过几年的建设，终于圆满落成。

Gōngchéng jīngguò jǐ nián de jiànshè, zhōngyú yuánmǎn luòchéng.

After several years of construction, the project is finally successfully completed.