main threads (of a complicated affair); main lines; 头绪
be all set 准备就绪
be in a state of agitation 心绪不宁
carry on an unfinished task; take up where another has left off 续未竟之绪
Xu Zhi 绪志
牛津高阶第八版
美国韦氏词典
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维基百科 (自由的百科全书)