江湖郎中

(noun) A false doctor; a person who inaccurately claims healing abilities or professional medical training.

例句

EXAMPLE: My aunt was quite sick with cancer, and just before she died she paid a lot of money to some deceitful medicaster who promised he could heal her.

我姑媽患癌癥，病情嚴(yán)重，就在去世前，她花了很多錢，請了一個承諾可以治好她的江湖郎中看病。

徑直

(INFORMAL) Straight ahead, without turns (used when giving directions)

EXAMPLE: To get to the market, walk to the next street, turn left, go one street more, turn left again, and then go dead ahead for one hundred meters.

要去市場，請走到下一條街，向左轉(zhuǎn)，再過一條街，再向左轉(zhuǎn)，然后徑直向前走100米。