When we rotate this side here, but the Angle doesn't stay at a right Angle.
当旋转这个边时，这个角就不再是直角了。
For anyone that needs a little refresher course, the sine function gives the ratio of the opposite side of a given Angle in a right triangle to the hypotenuse.
一些人需要复习一点数学课程，正弦的作用是给出在一个直角三角形中的一个已知角所对应的一条边与直角三角形斜边之间的比率。
The good second shot is to aim the right side of the fairway and left about 100 yards to the green, from there you will have a good angle to the flag.
第二杆最好瞄准球道右侧距果岭100码处，这个地方空间较大，进攻果岭的角度较佳。
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