我知道走出第一步是最难的，而且必须慎重。
I knew goes out first step is most difficult, moreover must be prudent.
但是，基本架构却一点都不像，而且必须慎重看待它的任何并行。
The basic architectures do not look alike at all, though, and you must view any parallels with a large dose of skepticism.
GWT开发文档提示说必须慎重使用JSNI，因为不能保证浏览器的可移植性，而且编译代码的优化是有限制的。
The GWT development documentation warns that JSNI must be used with discretion because browser portability isn't guaranteed, and the compiled code optimization is restrictive.
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