What are primary, secondary, and tertiary sources ?

First to remove loose membranes from the outside of the beef knuckles. 主膜

• wedge musule 楔形肌肉
• femur musule：The bone of the thigh or upper hind limb, articulating at the hip and the knee.股骨
• gristle layer 软骨层
• knuckle heart 指关节

For a vegetable with lots of nook and crannies like broccoli or cauliflower, you need to make sure soak them in water 1 ~2 minutes to clean it.

• nook: a corner or recess, especially one offering seclusion or security.角落
  • the nook beside the fire
• cranny: a small, narrow space or opening.缝隙
  • bugs and spiders conceal themselves in crannies of the bark

The reforms will help unshackle the telecoms sector: Release from shackles, chains, or other physical restraints.

Lumber prices earlier this year had climbed by as much as 316% since the start of 2020

• Lumber: Timber sawn into rough planks or otherwise partly prepared, ie, sawn wood products.

• The term 'timber' is used to refer to the wood at any stage after the tree has been felled.
• 'Timbers' may refer specifically to timber beams or boards used in house building. In the United States and Canada, timber often refers to felled trees, and the term 'lumber' is used to refer to sawn wood products

There aren’t enough roofers, glaziers, plumbers, electricians and other types of workers to fill the needs of the construction industry.

• roofers: A person who constructs or repairs roofs
• glaziers /ˈɡleɪzɪə/: A person whose profession is fitting glass into windows and doors.

the day is shot: wasted

contrarian /kənˈtrɛːrɪən/: a person who opposes or rejects popular opinion, especially in stock exchange dealing.

• it has become fashionable to be a stock-market contrarian

Much of Intel Stock's valuation discrepancy with AMD's has to do with the company’s anemic growth and its many past missteps.

• discrepancy /dɪsˈkrɛp(ə)nsi/: an illogical or surprising lack of compatibility or similarity between two or more facts.
  • “there's a discrepancy between your account and his”
• anemic /əˈniːmɪk/: lacking in colour, spirit, or vitality.
  • an anaemic aspidistra stood in the grate

perk: become or make more cheerful, lively, or interesting.

• she'd been depressed, but she seemed to perk up last week

titanium /tʌɪˈteɪnɪəm,tɪˈteɪnɪəm/: the chemical element of atomic number 22, a hard silver-grey metal of the transition series, used in strong, light, corrosion-resistant alloys.钛

I can give a lift home if you want to.