Well, for starters, "Hello World" is a regular 8-bit-per-character string and assigning it to an array of 32-bits per character is invalid.

对于初学者来说，“Hello World ”是每个字符8位的常规字符串，把它赋值给每个字符32位的数组是非法的。

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America's economy isn't a stalled car, nor is it an invalid who will soon return to health if he gets a bit more rest.

美国经济不是一辆抛锚的汽车，也不是一个多休息会就可以恢复健康的病人。

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Geometrical optics approach can only calculate the high frequency approach solution of drilling bit vibration source wave equation in non caustic area but it become invalid in caustic area.

由于几何光学法求解钻头震源波动方程的高频近似解有局限性，即在焦散区失效，故只能计算非焦散区的高频近似解。

youdao

Geometrical optics approach can only calculate the high frequency approach solution of drilling bit vibration source wave equation in non caustic area but it become invalid in caustic area.

由于几何光学法求解钻头震源波动方程的高频近似解有局限性，即在焦散区失效，故只能计算非焦散区的高频近似解。

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