合击
combined assault; to mount a joint attack
合计
to add up the total; to figure what sth amounts to; to consider
合辑
compilation; compilation album
合集
collection; compilation
何济于事
of what use is it; (idiom)
几何级数增长
exponential increase
瓦赫基尔河
Vakhsh river (upper reaches of Amu Darya)
联合技术公司
United Technologies Corporation