They had to call in a heart specialist
他们必须请心脏专门医生来
🧩 词语组成解析
they
[ðe]
pron. 他/她/它们;人们，大家;政府，当局;她们;
had
[[hæd]]
have的过去式和过去分词
to
[tu,tə]
prep. 向，朝着;到;关于;属于;
adv. 朝一个方向的;到某种状态;关闭;
call
[kɔl]
v. 呼唤，喊叫;召唤，叫来，召集;下令，命令;打电话给;
n. 喊叫，大声喊;电话联络;必要，理由;要求;
in
[ɪn]
prep. 采用（某种方式）;穿着，带着;（表示位置）在…里面，（表示领域，范围）在…以内;（表示品质、能力等）在…之中;
adv. 在家;进入，到达;流行;当选;
adj. 在内的，朝内的;在位的，执政的;[口语]流行的，时髦的;（车等）到站的;
n. 执政党，掌权者;知情者;<美口>入口，门路;<体>（板球或棒球）攻球的一方;
🗣️ 情景例句
There's another advanced class today at four o'clock.
今天下午四点钟还有一次高级班。
You have your choice of three flavors of ice cream.
你有3种风味的冰淇淋可选择。
when they would be capable of providing information about traffic jams and suggesting alternative routes, when they would be used in hospitals to help doctors to diagnose illnesses, when they would relieve office workers and accountants of dull, repetitiv
计算机可以使办公室人员和会计免除那些枯燥、重复的劳动。