天天变；今天的水

美加

https://finance.yahoo.com/news/live/live-trump-threatens-tariffs-on-canadian-lumber-dairy-one-day-after-pausing-duties-on-canada-mexico-191201221.html

中加

https://apnews.com/article/china-canada-retaliatory-tariffs-agricultural-products-trade-d35f11cd9612b25283f202a8a59be859?