to start working seriously on something important
开始在重要的事情上认真工作 (kaishi zai zhongyao de shiqing shang renzhen gongzuo)
"I have to buckle down on my thesis this weekend."
"这个周末我得buckle down on我的论文。" (zhe ge zhoumo wo dei buckle down on wode lunwen)
to imply or suggest something indirectly
to unite people from different backgrounds
to control strong emotions before reacting
to fasten something such as buttons or laces; to decorate or...
to start growing or succeeding quickly in terms of money
to die
