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 release built-up stress or pressure
to meet and discuss something as a group
to depend on someone for emotional support
to move forward with energy and confidence after success or...
to cause delay or slow down progress
to create a positive environment with hopeful energy