保证: guarantee, to guarantee, to ensure, to safeguard, to pledge...
性能: function, performance...
小时候: in one's childhood...
质地: texture, background (texture), grain, quality, character, disposition...
牢: firm, sturdy, fold (for animals), sacrifice, prison...
夕阳: sunset, the setting sun...
后裔: descendant...
后勤: logistics...
舵手: helmsman...
迫切: urgent, pressing...