(informal)monitor the activities or development of; keep under observation
(非正式)監(jiān)控…的活動(dòng)（或進(jìn)展）；密切注意
(informal, chiefly N.Amer.)pay for something
(非正式，主北美)付賬；承擔(dān)費(fèi)用
my company will pick up the tab for all moving expenses.
我公司將承擔(dān)搬遷的所有費(fèi)用。
To observe carefully
密切注意
Let's keep tabs on expenditures.
讓們密切注意開(kāi)支情況