to suddenly start smiling
突然开始微笑 (tūrán kāishǐ wéixiào)
"He broke into a smile when he heard the good news."
"他听到好消息时，笑了起来。" (Tā tīngdào hǎo xiāoxī shí, **xiàole qǐlái**)
to resist or defend against illness or attack
to think that you are better than someone
to write down important information during a lesson or meeti...
to remain calm and focused under pressure
to stay committed to your plans and not give up
to return to a topic once something else has finished
