Usages of сложнее
Во втором эпизоде сюжет стал сложнее, а героиня — смелее.
In the second episode the plot became more complex, and the heroine became braver.
Иногда домашнее задание сложнее, чем урок.
Sometimes the homework is more difficult than the lesson.
Elon.io is an online learning platform
We have an entire course teaching Russian grammar and vocabulary.