There are air-locked rooms here for issuing "challenges" to people with every conceivable severe allergy.
那里有完全密闭的房间，以供你能想到的所有最严重的过敏病人使用。
2
Gliding across the dusky sky, the craft startled locals and frightened air-traffic controllers, who promptly closed Hangzhou's busy airport and locked down the city's airspace for more than an hour.
Even when the car is off and locked, these fans whir around, so when you step back into it you don't need to crank up the power-hungry air conditioning.