be like getting blood out of (或 from) a stone (北美

be extremely difficult (said in reference to obtaining something from someone)

就像从石头上榨出血来（比喻很难从某人身上获取某物）

getting a story out of her is like getting blood out of a stone!.

让她开口讲故事如登天一样难！。

blood and guts

(informal)violence and bloodshed, especially in fiction

(非正式)（尤指小说里描写的）凶残，血腥

blood and thunder

(informal)unrestrained and violent action or behaviour, especially in sport or fiction

(非正式)（尤指体育或小说中）拼打动作，暴力情节

blood is thicker than water

(proverb)family relationships and loyalties are the strongest and most important ones

(谚)血浓于水

one's blood is up

one is in a fighting mood

怒火中烧（指准备大打出手的心情）

blood, sweat, and tears

extremely hard work; unstinting effort

做牛做马的活；不懈的努力

blood will tell

(proverb)family characteristics cannot be concealed

(谚)家族的特性总会显露

first blood

the first shedding of blood, especially in a boxing match or formerly in duelling with swords

（尤指拳击比赛或决斗中的）最先见血

the first point or advantage gained in a contest

（比赛中）先得分，占先

King &B{drew first blood} when he took the opening set.

在网球开盘局中金抢先得分。

give blood

allow blood to be removed medically from one's body in order to be stored for use in transfusions

献血

have blood on one's hands

be responsible for someone's death

负有血债

in one's blood

ingrained in or fundamental to one's character

天生就有的，骨子里存在的

racing is in his blood.

他天生长于赛跑。

make someone's blood boil

(informal)infuriate someone

(非正式)激怒，使怒火中烧

make someone's blood run cold

horrify someone

使不寒而栗

new (或 fresh) blood

new members admitted to a group, especially as an invigorating force

新成员，新人，新鲜血液