hard

Khó khăn, vất vả

needing a lot of physical effort or strength

Collocations hard work · a hard job

• She works very hard.

  Cô ấy làm việc rất vất vả.

Khó khăn, khó hiểu

needing a lot of mental effort or concentration

Collocations hard problem · a hard exam

• This is a very hard question.

  Đây là một câu hỏi rất khó.

Khó, cứng

not soft or flexible; firm to touch

Collocations hard surface · a hard object

• The ground is very hard.

  Đất rất cứng.

Khó khăn, vất vả

with a lot of effort or strength

Collocations work hard · study hard

• He studies very hard.

  Anh ấy học rất chăm chỉ.

Khó khăn, khó hiểu

with a lot of mental effort or concentration

Collocations think hard · concentrate hard

• She thought very hard about the problem.

  Cô ấy suy nghĩ rất kỹ về vấn đề.

Khó, mạnh mẽ

with a lot of force or strength

Collocations hit hard · push hard

• He hit the ball very hard.

  Anh ấy đánh bóng rất mạnh.

Dài, liên tục

for a long time without stopping or relaxing

Collocations work hard · study hard

• They worked hard all day.

  Họ làm việc rất vất vả suốt cả ngày.

Dài, liên tục

for a long time without stopping or relaxing

Collocations sleep hard · rest hard

• He slept very hard last night.

  Anh ấy ngủ rất ngon đêm qua.