計／計仔 (gai2 ／ gai2 zai2)：a plan or an idea. (spoken form, very casual) 🤔
Normally, we pronounce 計 as gai3, but here we pronounce in different tone.
jiu3 lam2 haa5 gai2 zai2 sin1 zi3 dak1 aa3 ，di1 gung1 fo3 zou6 gik6 dou1 zou6 m4 jyun4 ge2 ！
Have to have a “plan” first, for there are endless homework.
( 諗＝think；plan -> ask for someone’s help; or copy other’s homework …. it may be not a good way! )
jyun4 cyun4 mou5 gai2 ！keoi5 go3 jan4 gam3 gu1 hon4 ，soeng2 keoi5 ceng2 ngo5 dei6 sik6 faan6 zan1 hai6 mou5 ho2 nang4 gaa3 。
Completely have no ideas! He is very stingy. It is impossible to ask him buying us a meal. (It implies the speaker tried to ask many times.)