double-angles

基本解釋

The trigonometric terms should be changed by the substitution of the equations involving the double angles.
用倍角公式代換三角函數(shù)項。
From a double angle to look at economic development and legal promotion, the legal indictment caused by western development and the national unified legal system will become an important problem.
從經(jīng)濟(jì)發(fā)展和法治推進(jìn)的雙重視角來看 ,西部發(fā)展所引起的特殊法律訴求與全國統(tǒng)一法制之間的關(guān)系將成為一個重要問題。
He is working double tides to finish his essay.
他日夜苦干，趕寫他的文章。
I do not realize it is a double feature.
我原先不知道這是雙片連映。
Double agents live in a perpetual state of fear.
兩面派永遠(yuǎn)過著提心吊膽的生活。