Meeting people is only the start, and if you get really good at meeting people, that does nothing for your social life unless you build lasting friendships.

结交别人仅仅是个开始，如果你十分擅长结交别人，除非你建立了持续的友谊，否则那对你的社交生活毫无意义。

youdao

Typically, unless RnRMgr is not running, you will rarely see the hourglass icon (and if you do, it only appears for a few seconds at most).

一般来说，除非 RnRMgr 不在运行，否则您很少会看到沙漏图标（即使看到，也最多只会出现几秒钟）。

youdao

If the name assigned to a new rollover file is already used by an existing file, the existing file is overwritten unless it is read-only.

如果分配给新的滚动更新文件的名称已经被现有文件使用，则现有文件将被覆盖，除非它是只读的。

youdao

Vermont said it could only happen if a physician gave it the okay, while Maine said it could happen unless a physician asked to opt out.

FORBES: Litigants Want a Prescription for Privacy at the Pharmacy

But one thing Yandell is sure about is that he isn't going to leave his sunny suburban neighborhood unless he has to, and if that happens, he says he would only want to move to another one just like it.

CNN: Is America's suburban dream collapsing into a nightmare?

But this message is most unlikely to be heeded unless it is accompanied by another: that if any test goes ahead, not only will the offers of aid, trade and diplomatic recognition be withdrawn, but severe economic sanctions will be applied.

ECONOMIST: Desperate tyrant, global menace