begin-began 开始
begin began beginning 开始 ; 入手下手
begin-began-begun seen 这一部分可以分为两种
begin to do-began to do 开始做某事
Those who began smoking within a month of the study's start were four times as likely to be depressed at the study's end than those who did not begin smoking.
那些在研究开始后一个月内就开始吸烟的人在研究结束时抑郁的可能性是那些没有开始吸烟的人的四倍。
In response, a number of economists began forecasting that housing would hit a bottom in late 2011, then begin to recover.
面对这种情况,多位经济学家开始预测房市将会在2011年末触底,然后开始复苏。
Recently, the SEC began to require 500 of the largest public companies to begin filing their financial statements using XBRL.
最近,SEC开始要求500家最大的国有公司使用XBRL填充它们的财务报表。
As I began the 4th row, I heard Fortunato begin to shake the chains that held him to the wall.
VOA: special.2009.02.07
By the way, if we begin by talking about poetic and practical language, we're beginning where the Russian formalists began.
谈到诗化语言和实用语言,我们就和俄国的形式主义者站到了同一个起点。
The WHO authorized drug manufacturers to begin testing possible vaccines, and the first human trials began a month later.
VOA: standard.2009.12.25
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