in preparation在准备中,
in preparation for作为...的准备,
make preparation s against 为对付(或防止) ...做准备,
make preparations for为...做准备.
都是固定搭配
in preparation在准备中,
in preparation for作为...的准备,
make preparation s against 为对付(或防止) ...做准备,
make preparations for为...做准备.
都是固定搭配