他声称，第一个小时是消除误解所需的必要时间。
The first hour, he claimed, was necessary for misperceptions to be eliminated.
10000小时的写作时间是在某方面成为专家的必要时间。
000 hours is the magical number folks throw around to become an expert at something.
使用柠檬汁也应十分注意，其停留时间最好不要超过1分钟，必要时可重复操作，然后清洗并擦干。
The stay time had better not over 1 minute, if necessary could repeat the operation, and then clean and dry it.
生意小百科网：在必要时我将加班，以赶上你们的计划时间英文怎么说？
I will work overtime for catching up with your schedule, if necessary.
生意小百科网：在必要时我将加班，以赶上你们的计划时间英文怎么说？
I will work overtime for catching up with your schedule, if necessary.
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