暗礁险滩 | àn jiāo xiǎn tān
Xi Jinping used this suyu (used as 险滩暗礁 xiǎn tān àn jiāo) during his speech at the opening of the Second China International Import Expo on November 5th, 2019.
Meaning
Hidden reefs and dangerous shallows; hidden dangers or disasters.
Original
(Used as “险滩暗礁”) 长江、尼罗河、亚马孙河、多瑙河昼夜不息、奔腾向前，尽管会出现一些回头浪，尽管会遇到很多险滩暗礁，但大江大河奔腾向前的势头是谁也阻挡不了的。