trustworthy的音标：trustworthy的英式发音音标为：['trʌstwɜ:ði]trustworthy的美式发音音标为：['trʌstwɜrði]...

Sapwood contains xylem vessels, but not as strong as heartwood.边材含有木质导管, 但不如中心木质那样坚硬.Heavy wood with dark colored heartwood used for ornaments.重硬且心材呈浓色者可供作木艺品制造用.Heartwood from dark brown to purple brown, alternating str...