The gate, though, can only be closed when your truck is on the main route.
不过，这扇大门只能在你的卡车上了主干道之后才能被关上。
Unclean water is the main route of transmission.
伤寒以水型传播为主；
Take effective measures to cut off the main route of transmission of AIDS.
采取有效措施，切断艾滋病的主要传播途径。
At present, the spread of AIDS in China has become the main route of transmission.
目前，性传播已经成为我国艾滋病的主要传播途径。
At present, the spread of AIDS in China has become the main route of transmission.
目前，性传播已经成为我国艾滋病的主要传播途径。
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