嗯。。。老师说我们必须加入一个3-5人的小组,所以我们没办法开始工作

Well... the teacher said that we have to go into a group of 3-5 people, so this isn't going to work.

Source: Tatoeba

Sentence Composition

=1 ēn (a groaning sound)
=1 èn
  1. (nonverbal grunt as interjection)
  2. OK, yeah
  3. what?
=1 en interjection indicating approval, appreciation or agreement
=1 ńg Used as an interjection to express doubt or curiosity.
=1 ňg Used as an interjection to express surprise.
=1 ǹg
  1. (dialectal, Internet slang) alternative form of (yìng)
  2. Used as an interjection to express agreement or pledge.
  3. alternative form of (yìng)
2 老师 lǎoshī teacher

classifiers: ,

=3 shuì to persuade
=3 shuō
  1. to speak; to talk; to say
  2. to explain; to comment
  3. to scold; to tell off
  4. (bound form) theory; doctrine
=3 shuō variant of shuō
4 我们 men we; us; ourselves; our
5 必须
  1. to have to
  2. must
  3. compulsory
  4. necessarily
6 加入 jiā
  1. to become a member
  2. to join
  3. to mix into
  4. to participate in
  5. to add in
=7 一个 ge
  1. a; an; one
  2. the whole (afternoon, summer vacation etc)
=7 一个
  1. Combination of the numeral (“one”) and the generic classifier : a; an; one
  2. same
8 rén person; people

classifiers: ,

=9 de
  1. of; ~'s (possessive particle)
  2. (used after an attribute when it modifies a noun)
  3. (used at the end of a declarative sentence for emphasis)
  4. (used after a noun, verb or adjective to form a nominal expression, as in 皮革的 de "one made of leather" or 跑堂儿的 pǎotángrde "a waiter (literally, one who runs back and forth in a restaurant)" or 新的 xīnde "new one")
  5. also pr. or di in poetry and songs
=9 a taxi; a cab (abbr. for 的士 shì)
=9 really and truly
=9 (bound form) bull's-eye; target
10 小组 xiǎo group
11 所以 suǒ
  1. therefore
  2. as a result
  3. so
  4. the reason why
12 我们 men we; us; ourselves; our
13 没办法 méibàn
  1. there is nothing to be done
  2. one can't do anything about it
14 开始 kāishǐ
  1. to begin
  2. beginning
  3. to start
  4. initial

classifier:

15 工作 gōngzuò
  1. to work
  2. (of a machine) to operate
  3. job
  4. work
  5. task

classifiers: , ,