A class that is not thread-safe can often be used safely in a multithreaded program as long as you ensure that instances of that class used by one thread are not used by other threads.
非线程安全类通常可以安全地在多线程程序中使用，只要您能确保一个线程所用的类的实例不被其它线程使用。
Debit cards are relatively safe to use (as long as you keep your PIN private), but if you can't find one of your bank's ATMs, you'll have to pay for the privilege of using another bank's cash machine.
借记卡相对来说安全一点（只要你的个人专用密码只有你自己知道），但是如果旅游地没有你所使用借记卡的自动取款机，那你就要用别的银行的取款机取款，那意味着你需要支付跨行取款费用。
So long as the pricks hurt, you are safe.
只要戳的时候还会痛，你就还算安全。
You are usually safe as long as you stick to established trails .
你通常是安全的，只要你坚持既定的路径。
To figure out how long you are safe from the sun (at least the UVB rays) you need to do a little math. Take the number of SPF and multiply it by 10.
需要计算一下才能知道你在太阳下可以待多久而不会被晒伤(至少不被UV B射线晒伤)。将SPF系数乘以10得出来的时间就是防晒产品的保护时间。
Hope you are okay celine and having a safe and special evening, how long have you been on the site for celine?
盼望你是好的，有一个寂静和席琳特别的夜晚，你不停在网站上为席琳？
The Galactic Federation has long been charged with the responsibility to ensure that you are safe from outside interference.
银河联盟长期以来一直负有责任，以确保你远离外界干扰。
The Galactic Federation has long been charged with the responsibility to ensure that you are safe from outside interference.
银河联盟长期以来一直负有责任，以确保你远离外界干扰。
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