The strong have been able to deter the strong — the United States and Soviet Union did so for decades — but, alas, the weak can also deter the strong.

强可制强- - -就像美国和苏联在过去几十年里一样- - -但是，要知道，弱也能制强。

youdao

Congress also made strong rules about what southern states had to do to re-enter the Union.

VOA: special.2010.02.04

Kenya last year sent its troops to fight al-Shabab in Somalia - they have now joined the 18, 000-strong African Union (AU) force supporting the UN-backed government.

BBC: Nairobi's Somali area Eastleigh hit by fatal blast

The rising numbers of part-time workers, anti-union legislation (in some states it is easier for workers to opt out from a union) and the strong anti-union disposition of firms like Wal-Mart all discourage membership.

ECONOMIST: The shrinking power of America's unions

They have now joined the 18, 000-strong African Union (AU) force supporting the UN-backed government.

BBC: Map locator