The second input is a firmer pull on the upper wing, in this case with the left hand.

第二个输入动作是一个更加坚定果断的对上翼的拉，在这个例子中是用左手。

youdao

Outside market survey adopted questionnaire investigation, case study, deep interview and the study of second-hand materials etc.

外部市场调研主要采用问卷调查、文案研究、深入访谈和二手资料研究等方法；

youdao

In the case of jets, buying second-hand does not necessarily mean buying a used aircraft.

谈到喷气机，买二手货并不意味着买到的一定就是旧飞机。

youdao

ReDigi case, though that case focuses on the second-hand sale of digital music.

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Mr Gahbauer added that as a result, fewer second-hand properties had come onto the market "than is normally the case in recessions", which moved the balance of supply and demand "more in favour of sellers over the course of 2009".

BBC: House prices 'continue to rise'