【正文】
ually the ocean floor are almost as irregular as the exposed land area. 讓步狀語(yǔ)從句: 由 though, although, as (雖然盡管 ), even if, even though, whever, no matterwh, whether引導(dǎo) . no matter who no matter what no matter which no matter when no matter where no matter how no matter wh whatever whoever whichever whenever wherever however wh ever Whenever (=no matter when) you call on me, you are always wele. Wherever (no matter where) you work, you can always find time to study. Take the one you like best, whichever (no matter which) it is. Though he is old, yet he is active. Although most of the people agreed, some were not willing to accepted. Proud as the nobles are, he is afraid to see me. We wouldn’t lose heart even if we should fail ten times.