Furthermore / besides / moreover (再者 / 此外 / 况且)

Structure … (first point)，再者 / 此外 / 况且 / 加之 + added point

Four additive connectors of cultivated register that chain reasons together, in two shades. To LIST another point of equal weight: 此外 (cǐwài, "besides this / in addition") and 再者 (zàizhě, "furthermore / for another thing"), which simply add one more argument. To REINFORCE with a clinching reason: 况且 (kuàngqiě, "moreover / what's more, on top of that") adds a weighty reason that props up what was said, and 加之 (jiāzhī, "added to which / coupled with this") is the most written, typical of chains of causes converging on one result (天气恶劣，加之准备不足 "bad weather, coupled with poor preparation…"). Against the colloquial 而且 (HSK 4), all four belong to argumentative prose. 者 is read zhě; 之 is read zhī.

Examples

费fèi用yòng太tài高gāo，再zài者zhě时shí间jiān也yě不bù够gòu。
The cost is too high and, furthermore, there isn't enough time either.
这zhè个ge方fāng案àn成chéng本běn低dī，此cǐ外wài还hái便biàn于yú推tuī广guǎng。
This plan is low-cost and, besides, easy to roll out.
路lù这zhè么me远yuǎn，况kuàng且qiě我wǒ也yě累lèi了le。
It's such a long way, and on top of that I'm tired too.
天tiān气qì恶è劣liè，加jiā之zhī准zhǔn备bèi不bù足zú，行xíng程chéng被bèi迫pò取qǔ消xiāo。
The weather was foul and, coupled with poor preparation, the trip had to be called off.

Levels are indicative: they follow the standard Chinese Grammar Wiki (AllSet Learning) progression, not an official HSK 3.0 mapping. We never assign levels by eye.

This point and the other 370, with audio on every example, inside Wanyu.