Do you prefer coffee or tea? The answer to that question might in part be down to your genes, research suggests.
be down to sth 仅剩...
造句：I'm down to my last dollar. 我只剩一美元了。
be down to sb 取决于，是...的责任
造句：It's down to you to check the door.
Scientists say a genetic predisposition to perceiving the bitterness of particular substances appears to nudge us towards one beverage or the other.
predisposition 倾向，禀性
nudge v. （朝某方向）轻推，渐渐推动 造句： He nudged me.
beverage 饮料，饮品
beverage不包括水，比 drink 更正式。 造句： Drinks are on me！我请你喝酒！
The first was a large twin study...
twin study 双胞胎研究
at least in those of European ancestry, particular genetic variants are linked to the strength of perception of different tastes.
ancestry 世系，血统 造句：He has Scottish ancestry.
variant n. 变异，变体，变形 造句：Table tennis is a variant of tennis.
While the effect of perception on your daily coffee intake might be relatively small...
intake 摄入
The preference towards tea can be seen as a consequence of abstaining from coffee.
abstain 戒绝；抑制；If you abstain from something, usually something you want to do, you deliberately do not do it. （abstain from）
