not paying attention; lost in thought
心不在焉;陷入沉思 (xin bu zai yan xian ru chen si)
"He looked completely spaced out during the meeting."
"他在会议上看起来完全心不在焉。" (ta zai hui yi shang kan qi lai wan quan xin bu zai yan)
to reveal one’s real character or intentions
someone or something that brings happiness
to do what one has promised
to make a process more efficient and effective by simplifyin...
to reduce or eliminate feelings of anxiety or pressure
used to express thanks politely