THIN air, thick smog and bad drivers make Mexico City hard going for cyclists.
稀薄的空气、浓雾、技术奇差的驾驶员使墨西哥城中的自行车手们寸步难行。
It's suffused with a thick smog that's a perpetual sulphur-yellow, and suffocated by motes of coal dust suspended in the breeze.
它弥漫着一层永远都是硫化黄色的浓雾，微风里浮着的煤尘微粒让人窒息。
Thick smog that had blanketed the city Wednesday cleared, and fighter jets, helicopters and China "s first midair refueling planes flew over the center of the city."
浓厚的烟雾覆盖着周三晴朗的，有喷气式战斗机、直升机和中国空中加油机从城市中心飞过的北京城。
Cars and trucks and taxis came and went honking horns the taste of fuel and smog thick in the air.
汽车、卡车、出租车来来去去，喇叭声不断，粘粘的空气中充斥着汽油和尾气的味道。
When it was over, more than 4, 000 people had been killed by the thick black smog.
当烟雾消散时，有4,000多个市民死于这片浓黑的烟雾。
Jean: So how thick was the smog?
当时的烟雾有多厚重呢？
The smog may be so thick that airports are closed and chains of collisions occur on the highways.
烟雾有可能如此之浓，以致机场关闭，公路上连续发生撞车事故。
The smog may be so thick that airports are closed and chains of collisions occur on the highways.
烟雾有可能如此之浓，以致机场关闭，公路上连续发生撞车事故。
应用推荐