pretentious
adj
claiming (esp without justification) merit or importance; pompous or showy 自负的; 自命不凡的; 炫耀的; 自我标榜的
expressed in pretentious language 用狂妄的语言表达的
a pretentious writer, book, style 自我炫耀的作家、 书、 文风.
Once the oxygen content of the air had risen to 25% it was ready to burn.
一旦氧气在空气中的含量达到25%,它就要燃烧。
From this we get the expression to make a beeline for someone or something, which means to go quickly along a straight direct course for someone or something.
从这里我们得到一条短语"to make a beeline for someone or something,意思是迅速地沿着一条直线向某人或某物走去。