Urban railway of San Francisco

(Percussion instrument)The triangle

Triathlon

KCR West Rail Line, now just known as "West Rail"

Kowloon-Canton Railway

Kowloon-Canton Railway Corporation

Kowloon-Canton Railway

carry a gun

Taiwan high-speed rail

monorail

(noun) MTR

subway station

take the subway

to be a police officer [colloquial]

Eiffel Tower

scrap iron

Guangzhou Metro

wish that someone can improve

noun; blacksmith

lit. to strike while the iron is hot, meaning to get things done without delay

latte

literally meaning to hold a 'metal pen' (usually refers to a crow bar), describes someone who use manual tools (often metallic) to make a living, compared to those who uses a pen to make a living (office based work)

take the metro

to throw a discus

magnet

resolutely and decisively

galvanized iron, normally used for making metal buckets

East Rail Line (in Hong Kong)

rail

(noun)) the Airport Express, which is the public transportation in Hong Kong