She recovered sufficiently to accompany Chou on his tour of Africa in 1964.

她当时已经康复，可以在周1964年的非洲之旅中伴随他。

300,000 years after the Big Bang, the Universe had cooled sufficiently for protons and electrons to combine into neutral hydrogen atoms.

宇宙大爆炸30万年后得到充分冷却，质子和电子结合形成中性氢原子。

The holes were sufficiently large to serve as nests.

洞足够大，可以作巢穴。