ThefuturesurvivalofthebaldeagleisstillanimportantAmericanecologicalconcern.

Somecosmeticsmanufacturersattempttocapturetherose'sunmistakablefragrance香味insoapsandperfumes.

In1974HenryAaronbrokeBabeRuth'smonumentallifetimerecordof714homeruns.

Bythenineteenthcentury,embroideryonmen'sclothinghadvirtuallydisappearedexceptfortheoccasionaldecorativevestandtie.

Withlasersscientistscanprobemanyphysicalprocesses,suchascombustion,oncebeyondourken.视野