Draw a straight line above the empty part of the balloon.

上面画一个气球的空白部分直线。

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If you want to take part in the contest, it is a good idea to remember these guidelines: first, make sure your stomach is nearly empty of food.

如果你想参加比赛，建议你记住这些指南：首先，确保你的胃里几乎没有食物。

youdao

The hardest part about trying an empty email inbox is starting with thousands of messages.

尝试清空收件箱中最难的部分是一开始面对数以千计的消息的时候。

youdao

Traders in the market's 1976 hall urged HM Revenue and Customs to reduce their rates because of the number of empty units in that part of the market.

BBC: Kirkgate Market

But I really want to focus on the half-full part of the glass tonight, not the half-empty.

CENTERFORSECURITYPOLICY: 2011 Freedom Flame Award: John Lehman

Security papers like these tend to emphasize the part of the glass that is half-empty, so many readers might not have appreciated how few people were affected, even potentially.

FORBES: Magazine Article