这将导致第三个问题：为信号处理程序接收信号的程序调用已包装的调用。
This led to a third problem: Programs that take signals for which the signal handlers invoke wrapped calls.
为了处理该问题，pseudo在启动包装器时阻塞某些信号，并在包装器结束时解除阻塞。
To handle this, pseudo blocks certain signals when starting a wrapper, and unblocks them at the end of the wrapper.
我们的口红是高端产品，不应该使用廉价包装。华美的包装是显示产品质量的信号。
Our lipstick is an upmarket product and our package shouldn't be cheap. The richness of the package will signal the quality of the product.
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