收入约束的英文：
income constraint
n. 收入；收益；所得
- IQC Incoming quality control
来料检验 - Incoming fire has the right of way.
飞来的子弹有优先通行权。（挡它的道你就要倒大楣！） - He has a comfortable income.
他有充裕的收入。 - The data on Argentine incomes are sparse.
有关阿根廷国民收入的资料不多。 - His income is incomparable with mine.
他的收入不能与我的相比。
n. 强制，限制；约束，克制；局促
- She showed constraint in the presence of the strangers.
她在陌生人面前显得很拘束。 - At length these moments of constraint were removed.
这种尴尬的局面终于过去了。 - There have been financial and political constraints on development.
发展过程中会遇到财政和政治的约束。 - The country decides to reduce constraints on imports.
这个国家决定减少对进口物品的限制。 - There are no constraints on your choice of subject for the essay.
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