第18课

to descend, to land

hot, popular

author

traffic, communication

technology

whether (or not); if

second

way, mode

cannot stand, cannot bear

diary, journal

safe, secure

password

to allow, to permit

measure word for bridges, mountains, buildings

bridge

dangerous

then, immediately after that

police

to catch, to arrest

salty

mineral water

to pay a sum of money

to give, to enumerate

to lose one's way

address

place, site

century

post office

to receive

envelope

website

news, information