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Hydrogen is the lightest element in the Periodic Table. hydrogen(n) element(n) element of sth an amount, usually small There is an element of truth in your words. 一点点 Wood is less dense than water, which is why it floats. That means it has less mass per...

1. Climate is often described in terms of average temperature and precipitation over time. precipitate(v.) -to become rain Clouds usually precipitate as rain and snow. -to accelerate This incident precipitates his decision. precipitate -hasty we should nev

单词部分 1; Announcement will be posted on the college website. post (v.) to put something on the internet (n.)a piece of writing, image, or other item of content published online. 2; All students have free access to online resources within the library netwrk.