"the sluggishness of the economy" "the sluggishness of the compass in the Arctic cold"
"the general appearance of sluggishness alarmed his friends"
sluggishness是什么意思
billions是什么意思
name plate是什么意思
prescribe medicine是什么意思
tin box是什么意思
cake tin是什么意思
basics是什么意思
essentials是什么意思
fundamentals是什么意思
nitty-gritty是什么意思