I will have done it by the time you come back.
在你回来之前，我会做完它。[将来完成时，表示将完成…，会做完…]
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📚 句中词汇解析
从本句中提取的重要词汇
adj. 已完成的;煮熟的;合乎礼仪的;合乎规矩的;
int. （表示接受建议）;
v. 做( do的过去分词);干;
"When you're done, perhaps I can say something."
等你说完，也许我可以说点什么。
近义：made, terminated, accomplished, complete, completed, concluded
n. 时间;时刻;时代;次;
vt. 为…安排时间;测定…的时间;调准（机械的）速度;拨准（钟、表）的快慢;
vi. 合拍;和谐;打拍子;
adj. 定时的;定期的;[美国英语]分期（付款）的;
int. [体育]时间到，（一场或一局等的）比赛时限，暂停;
"I can only carry two at a time."
我一次只能带两个。
近义：clock, lifetime, period, season, chapter, aeon
vi. 来;开始;出现;发生;
vt. 做;装扮…的样子;将满（…岁）;
int. 嗨！;
"The time has come for action if these beautiful animals are to survive."
若要使这些美丽的动物能生存下去，现在就要行动起来。
近义：impersonate, perform, personify, portray, represent, stage
反义：leave, absquatulate, retire, retreat, scat, split
n. 背，背部;背面，反面;后面，后部;（椅子等的）靠背;
vt. 使后退;支持;加背书于;下赌注于;
vi. 后退;倒退;
adj. 背部的;后面的;以前的;拖欠的;
adv. 以前;向后地;
"Water allotments to farmers were cut back in the drought."
在干旱时期配给农民的水量减少。
近义：second, support, endorse, illustrate, document, backtrack
反义：impel, inch, save, loop, sheer, slew