It seems like both 为 and 是 mean "to be". In which cases is one used but not the other? Is it something like the difference between "estar" and "ser" in Spanish and Portuguese? (In the sense that one ...
Literally, 死前 means before death while 生前 means before life. They seem to bear the opposite meaning. However, in most cases, they actually mean the same thing, i.e., when someone was still alive. ...
In the Pimsleur Mandarin course it uses 如果 (rúguǒ) to mean 'if', but the dictionary shows 要是 (yàoshì) to have a similar meaning: 如果: if; in case; in the event that 要是: if Are there any ...