n.罪，罪恶，罪过(对神的违犯或对宗教戒律、道德规范的违犯)，罪行，犯罪(违犯宗教戒律、道德规范的行为)，过错，过失，恶行
vi.犯戒律，犯过失
abbr.正弦

原形：sin第三人称单数：sins复数：sins过去式：sinned过去分词：sinned现在分词：sinning

It is sin to maltreat the old.
虐待老人是罪过。
She wants to confess her sin to the god.
她想向上帝认罪。
The girl was living in sin with her boyfriend.
女孩和男友同居。
The angle between the hypotenuse and the opposite side in a right triangle is the sine of the angle.
在直角三角形中，斜边与对边之间的角度是该角度的正弦。
The sine function is used in trigonometry to find missing sides or angles in a triangle.
正弦函数在三角学中用于找出三角形中缺失的边或角度。
In a circle, the sine of an angle is equal to the ratio of the length of the opposite side to the radius.
在圆中，一个角度的正弦等于对边长度与半径的比例。
The sine wave is a fundamental waveform in electrical engineering and sound waves.
正弦波在电气工程和声波中是一种基本的波形。
The sine rule can be used to calculate the lengths of any side in a non-right-angled triangle given two angles and a side.
已知两个角度和一边，可以使用正弦定律计算非直角三角形中任何一边的长度。
The cosine and sine of an angle are periodic functions with a period of 2π." - 余弦和正弦函数都是周期为2π的周期函数。
In navigation, the sine of a bearing is used to determine the direction relative to true north.
在航海中，一个方位角的正弦用于确定相对于真北的方向。
The amplitude of a sine wave represents its maximum deviation from its equilibrium or resting state.
正弦波的振幅表示其偏离平衡或静止状态的最大值。
The sine of an acute angle in a right triangle is the height of the triangle divided by the hypotenuse.
在直角三角形中，锐角的正弦等于三角形的高度除以斜边。
In physics, the sine of an angle is often used to describe the vertical component of a vector.
在物理学中，正弦常用来描述矢量的垂直分量。