默克公司的疫苗临床试验研究了五年，葛兰素公司研究了将近六年半，因此还不是很清楚疫苗的保护时间能维持多久。
Merck's vaccine was studied in clinical trials for five years, and Glaxo's for nearly six and a half, so it is not clear how long the protection will last.
没过多久,他们便以某种方式得到了失落的约柜，一个他们隐藏保护的宝物。
In due course, they somehow managed to gain possession of the Ark of the Covenant, which they hid for safekeeping.
这种免疫保护的时限性是多久？
没过多久，他就跟父母分开了，这样既是为了保护他，也是为了方便父母抗敌。
He was separated from his parents shortly afterward, both to protect him and to allow them to fight against the enemy.
由此也可以推断，没有坎贝尔，卢卡斯也不会创造出充当“保护者”的欧比旺这一角色，欧比旺遇到卢克后没多久就给了他一把光剑。
Presumably, too, he would never have invented the "protective figure" Obi-Wan, who gives Luke a "lightsaber" not long after meeting him.
需要计算一下才能知道你在太阳下可以待多久而不会被晒伤(至少不被UV B射线晒伤)。将SPF系数乘以10得出来的时间就是防晒产品的保护时间。
To figure out how long you are safe from the sun (at least the UVB rays) you need to do a little math. Take the number of SPF and multiply it by 10.
雷雨持续多久，他也在墓前待多久，在墓前一圈一圈的转着，保护着母亲。
As long as the storm lasted, the man remained near the grave, circling around it countless times, to protect his mother's spirits and keep her from fear.
水库的修建，有效地保护了自然资源和环境，许多久已不见的珍禽异兽，纷纷来此栖息。
The construction of the reservoir, has protected natural resources and environment effectively, a lot of rare birds and animals disappearing for a long time, come here to perch one after another.
水库的修建，有效地保护了自然资源和环境，许多久已不见的珍禽异兽，纷纷来此栖息。
The construction of the reservoir, has protected natural resources and environment effectively, a lot of rare birds and animals disappearing for a long time, come here to perch one after another.
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