必 修 課 bì xiū kè : a required course

必 要 bì yào : necessary; essential; indispensable; required

必 要 條 件 bì yào tiáo jiàn : requirement

勢 在 必 行 shì zài bì xíng : be imperative; be required by circumstances

需 xū : to require; to need; to want; necessity; need

Big5: , Unicode: 9700 (需),
Links: MT, Cantonese, Ld, Chinese Language

需 求 xū qiú : requirement

需 要 xū yào : to need; to want; to demand; needs; to require

要 求 yāo qiú : request; require; stake a claim (to something); to ask; to demand

要 有 yào yǒu : need; require

主 科 zhǔ kē : required courses in the major subject