lǎo / shī / gǔ / lì / dà / jiā / hù / xiāng / bāng / zhù / bú / yào / yīn / wèi / jìng / zhēng / ér / cáng / sī

老师鼓励大家互相帮助，不要因为竞争而藏私。

The teacher encouraged everyone to help one another instead of withholding knowledge out of competition.