skywriting
[s'kaɪraɪtɪŋ]
n.
空中文字（指飞机放烟在空中写成的文字或图案）;
v.
用飞机喷出的烟写字，大肆宣扬( skywrite的现在分词 );
例句:
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A company may advertise its products by means of newspapers, magazines, television, hoardings, and even skywriting.
一个公司可以利用报纸 、 杂志 、 电视 、 广告牌, 甚至用飞机在空中喷烟形成字的办法为其产品做广告.
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Love is about airplanes pulling banners over stadiums . Giant words in skywriting.
爱就要用飞机拉出标语. 用空中文字表达.